Fundamental Review of State Government
Nevada Seismological Laboratory
Mackay School of Mines
University of Nevada
Reno, Nevada 89557
Phone: 775-784-4975
Web Page: www.seismo.unr.edu
Director: John Anderson
775-784-4975
Review prepared: April 17, 2000
Figures are contained in a separate presentation.
Section 1. Description of Services
The Seismological Laboratory has adopted the following mission statement:
Established as a separate research and public service division, the Nevada Seismological Laboratory has overall responsibility for instrumental studies of earthquakes in the Nevada region. The laboratory operates a statewide network of seismographic stations and investigates the sizes, frequencies of occurrence, and distribution of earthquakes in the region, and other problems related to seismic risk in Nevada. The laboratory disseminates information through the World Wide Web and regularly publishes research results. It serves as a repository of information and a resource for the public on matters related to earthquake activity and earthquake risks in Nevada and adjoining states. The laboratory also handles grant- and contract-supported research on seismic problems of national and international importance. The laboratory interacts closely with the UNR Department of Geological Sciences to prepare well-educated professionals for careers in seismology, and with the Nevada Bureau of Mines and Geology in its research and outreach efforts on natural hazards.
Section 2. Program cost, source of funding.
|
Program Cost |
FY 2000 Budget |
FY 2000 Source of Funding |
||
|
Professional |
246,869 |
General Fund Appropriation |
$358,559 |
|
|
Classified |
34,472 |
|||
|
Graduate Assistants |
9500 |
|||
|
Wages |
||||
|
Fringe |
57,444 |
|||
|
Travel |
||||
|
Operating |
10,274 |
|||
|
Scholarships |
||||
|
Total |
$358,559 |
This section shows only the cost to the Nevada taxpayers. The source of funding is the appropriation to the University of Nevada. The Seismological Laboratory does not receive any other state funds.
Section 3. Statutory Mandate
There is no Federal or Nevada law that mandates the State of Nevada to operate a Seismological Laboratory.
The Seismological Laboratory was approved by the Nevada Board of Regents on February 15, 1974 as a separate research division of the University of Nevada. It is a statewide research laboratory, with its Director reporting to the Dean of the Mackay School of Mines. Our objectives, as approved by the Regents, are to:
1. Operate a network of seismic stations in the Nevada region.
2. Analyze the data obtained with the Nevada seismic network.
3. Compile data on historic and current earthquake activity in and around the State of Nevada.
4. Serve as a repository of information and exchange of information on earthquake activity in Nevada and adjoining states.
5. Provide for education of the public in matters related to seismicity and earthquake risk in the Nevada region.
6. Carry out grant- and contract- supported research on earthquake problems of national importance.
7. Consider such other kindred scientific and economic questions as in the judgment of the Board of Regents shall be deemed of value to the people of the State.
The existence of the Seismological Laboratory creates the possibility of accessing significant Federal and other funds related to earthquake hazard characterization and mitigation that otherwise would not be available to the citizens of Nevada. Objectives 1 and 2 are achieved using a combination of Federal and state support, essentially because the appropriate Federal agency (U. S. Geological Survey) has been convinced that recording earthquakes in Nevada is a problem of national importance (Objective 6). The support from the state is evidence to the USGS that Nevada also considers the earthquake problem to be significant. The state support also assures that studies of earthquakes in Nevada will deal with Nevada priorities and not just Federal priorities.
It is important to recognize that funds from the state are essential to create the kind of stable position that can attract and retain the key people in the organization and meet the service mission of the Laboratory. A base of state funding allows the lab to retain outstanding scientists who in turn bring in millions of dollars of Federal research to the state. The state funding for the Seismological Laboratory for 1991-1999 was approximately $2.2 million. This made it possible for the Seismological Laboratory to attract approximately $13.5 million in Federal funds for the same time interval, or 6.1 non-state dollars for every 1 state dollar. (Final external funding totals for the year 2000 are not available yet.)
Section 4. Public Purpose / Critical Need
Nevada does have an earthquake hazard
Figure 1 is a map showing the known earthquakes affecting Nevada, 1850-1999. This figure shows that there is an earthquake hazard in Nevada. Figure 2 shows the sequence of magnitudes over time, for earthquakes with magnitudes of 5.0 or greater. Appendix 1 lists the 469 earthquakes that appear on Figure 2. For magnitudes below 6.0 the catalog is incomplete prior to the mid 1960s, when the Seismological Laboratory developed. For magnitudes from 6.0-6.9, there are proportionally more events prior to the 1960s, but it is likely that the catalog is incomplete. For magnitudes 7.0 and above, the catalog is complete since 1900, and may be complete as far back as 1860.
Nevada had magnitude 7.0 or larger earthquakes in 1915 (MS=7.8), 1932 (MS=7.2), and two in 1954 (MS=7.3, 7.1). The large event in the 1800s is the 1872 earthquake in California adjacent to Nevada; this earthquake was distinctly felt in much of Nevada. If we assume that the record is complete from 1860-2000 with 5 events of M>7, then the average rate is 5 events/140 years, or 1 event every 28 years on average.
Figure 3 shows a map of active faults in Nevada. The most important thing to notice about this map is that there are recognized active faults throughout Nevada, so no part of the state is completely safe. In general, the faults farther to the west tend to be more active, consistent with the seismicity map showing more earthquakes in the western part of the state. The activity rate in even the most active parts of Nevada is lower than in the major metropolitan regions around Los Angeles and San Francisco, California However, a large damaging earthquake could occur anyplace in Nevada, and would not be a scientific surprise.
In the context of this hazard, we propose that the Nevada Seismological Laboratory contributes to the following Statewide Functional Goals:
E175 Protect the States interest and competitive advantage in gaming and tourist-related industries, but increase the share of non-gaming business in Nevadas economy.
The research carried out by the Seismological Laboratory gathers basic information about earthquakes in Nevada which can in turn be applied to hazard mitigation. Data obtained with our seismic network, characterizing the locations and magnitudes of earthquakes in Nevada, is used in the development and updating of building codes, which affect all construction throughout the state. Seismicity information is fundamental to evaluation of potential construction and design criteria for significant or critical facilities. It should be emphasized that the Seismological Laboratory stands for gathering and distribution of this data to all parties, and for rigorous data analysis that is published in top quality scientific journals. The Lab does not take political positions either in favor of or in opposition to such facilities.
The Seismological Laboratory responds to requests for information from companies that are investigating whether or not they should locate facilities in Nevada. We also respond to requests for information from businesses in Nevada that want to know more about the seismic hazards so that they can be more prepared and make their facilities as "disaster resistant" as possible.
The Seismological Laboratory informs and encourages local businesses and governments to be prepared to respond to earthquakes. Members of the Seismological Laboratory are very active on the Nevada Earthquake Safety Council, which is also one of the more effective means of this form of outreach. (John Anderson was Chair of the Council from 1992-1997, and continues on the Board of Directors; Diane dePolo chairs the Education and Outreach Committee; many other Seismological Laboratory members have made presentations and occasional contributions to the Council.) Perhaps the most effective contribution of the Nevada Earthquake Safety Council to that goal was the preparation and publication in 1997 of Planning Scenario for a Major Earthquake in Western Nevada, published by the Nevada Bureau of Mines and Geology (NBMG Special Publication 20) with of course important contributions from the Seismological Laboratory.
The Seismological Laboratory has also contributed to development of non-gaming business in Nevada. For instance, in 1997 two UNR graduates who had trained in the Seismological Laboratory started Optim LLC, a Nevada software company. Optim and UNR Computer Science faculty built Nevada's fastest supercomputer (16 gigaflops), which remains partially owned by the Seismological Laboratory. Optim has also made sales of their products to virtually every earth-engineering company in the West, and in dozens of foreign countries. Optim's success helps establish Nevada industry, UNR, and the Seismological Laboratory as sources of high technology worldwide. Seismological Laboratory members have served as consultant to additional Nevada and national companies, amplifying the Lab's economic impact within Nevada.
E300 Maximize the use of the Internet and other technology to make government more accessible and more economical.
The Seismological Laboratory has pioneered economical Internet access to State services in Nevada since early in 1995. We were one of the first units on the University of Nevada to establish a web page, and our web pages with 5000-10000 hits per day remain the most visited within the University of Nevada. Services offered via the internet include information about recent earthquake activity, answers to basic questions about earthquakes and earthquakes in Nevada, on-line search of our earthquake catalog, information about the Seismological Laboratory and its research, and importantly, opportunities to contribute to scientific knowledge about earthquakes in Nevada by reporting felt earthquake experiences directly on the web.
E375 In developing environmental policies and programs, use cost-benefit analyses that consider all relevant social, economic, and legal factors.
Preparing for and responding to earthquakes is definitely a cost that affects every citizen in Nevada either directly or indirectly. The building codes throughout the state require structures that are built to resist earthquakes. The Seismological Laboratory has played a significant behind-the-scenes role in the code development. John Anderson (currently Director) was one of eight invited speakers at an important workshop in 1995 which set some of the policy for the 2000 International Building Code. Several members of the Seismological Laboratory participated in meetings in 1996 for establishing input to the national risk maps from USGS, which will be used to set design levels in the 2000 IBC code. Ultimately the ground motions in these codes are established by a cost-benefit analysis between increased cost of construction and performance in earthquakes.
E325 Improve pupil achievements in elementary and secondary schools, and increase the number of students going on in higher education in Nevada.
The tours we give to students at the Seismological Laboratory, and talks we give at local schools, serve to enrich student experiences. Members of the Seismological Laboratory have served as mentors for high school students in science projects, and thus encouraged their continuing education.
Summary
Nevada needs to understand its earthquake hazard, and the Seismological Laboratory is the state agency charged with this effort. An unexpected earthquake, or unexpected results of earthquakes, can result in significant loss. A reliable local source of information on earthquakes in the state is good for all segments of the state: citizens, the press, and public officials have a local source of information where they can call, businesses that want to plan so that recovery from inevitable earthquakes will be quick and cost-effective, insurance companies that need information to help them set rates, or Federal agencies that need to draw upon local expertise for guidance in development of national seismic hazard products.
Section 5. Growth in Funding / Caseload 10 year trends
Table 5a. The state operating budget for the Seismological Laboratory for fiscal years 1991 to 2000
|
Fiscal Year |
State Operating Budget (excluding overhead) |
% of General Fund to total |
|
|
1991 |
249261 |
||
|
1992 |
262936 |
||
|
1993 |
168008 |
||
|
1994 |
223801 |
||
|
1995 |
226749 |
||
|
1996 |
242254 |
||
|
1997 |
259458 |
||
|
1998 |
278260 |
||
|
1999 |
293867 |
||
|
2000 |
301115 |
||
|
% change |
+21% |
Table 5a shows the operating budget for the Seismological Laboratory for the fiscal years 1991 to 2000. The "State Operating Budget" is interpreted as the total funding provided by the Nevada taxpayers and administered by the State or any local jurisdictions. All of the state funds for operation of the Nevada Seismological Laboratory are allocated as part of the University of Nevada budget process.
Table 5b. Performance indicators for the Seismological Laboratory
|
Fiscal Year |
Caseload 1: Area monitored by the seismic networks for magnitudes 1.0-2.0 |
Caseload 2: Outreach (man-days, with web site visits counted as 1 minute of outreach) |
Caseload 3: Research grants and contracts |
|
|
1991 |
63,000 |
209 |
880,700 |
|
|
1992 |
63.000 |
221 |
1,213,200 |
|
|
1993 |
63,000 |
249 |
1,959,064 |
|
|
1994 |
130,000 |
308 |
2,175,576 |
|
|
1995 |
130,000 |
1362 |
2,178,761 |
|
|
1996 |
130,000 |
4633 |
1,036,332 |
|
|
1997 |
134,000 |
6812 |
1,417,550 |
|
|
1998 |
134,000 |
10075 |
1,330,563 |
|
|
1999 |
140,000 |
4641 |
1,335,784 |
|
|
2000 |
140,000 |
Not available |
not available |
|
|
% change |
+220% |
+4500% |
+52% |
Caseload 1. Area monitored by seismic networks.
The first goal for the Seismological Laboratory, as specified by the Regents, is to monitor earthquakes statewide. However, we have never received sufficient funds from the State to install and maintain a statewide network of seismometers. For that reason, the area covered by the network has been dependent on Federal funding priorities and on success by members of the Seismological Laboratory in competing for the Federal funds that are available. The stable funding from the state has been necessary for the Seismological Laboratory to maintain a critical mass of personnel who have, in turn, recognized that raising Federal funds for completion and maintenance of the seismic network is a part of their responsibility.
It is important to monitor and precisely locate small earthquakes because the existence and locations of small earthquakes are one of the important criteria for recognizing fault activity and the potential for larger earthquakes. With some uncertainties, the frequency of large earthquakes can be estimated from the frequency of small earthquakes. The mechanisms of small earthquakes help geophysicists understand the geological processes acting in a region. The nature of the ground motions during small to moderate sized earthquakes can be used to anticipate the characteristics of ground motions that should be expected from large earthquakes when they occur. Locations of small earthquakes can call attention to other geological phenomena such as geothermal activity or volcanic processes.
Caseload 1 looks at the area monitored at the magnitude 1.0-2.0 level, as this is most representative of the extent of the seismic network. For perspective, the area of Nevada is about 286,000 km2. However, the Seismological Laboratorys network extends into California to the west, generally to the crest of the Sierra Nevada, as Reno has much better access to those regions than seismic centers in the Los Angeles or San Francisco areas. Thus, complete coverage would be achieved with spatial coverage of 340,000 km2.
Caseload 2. Outreach
Service to the population of Nevada is, appropriately, a theme underlying several of the objectives that were approved by the Regents. This is a difficult quantity to measure. The table shows an estimate of outreach-days of activities, and is a lower bound as it counts only the activities of the state-funded faculty and one other faculty member in the Seismological Laboratory whose job responsibilities explicitly include outreach. In the table, direct contacts with individuals or groups are weighted roughly by the amount of time required for the activity plus preparation time. Research publications are weighted at 10 days each and presentations at national meetings or workshops are weighted at 2-5 days each. We also assume each of the state-funded faculty spent 1 hour/week responding to questions from the public or the press, although that is likely a significant underestimate. In 1995, the Seismological Laboratory initiated its site on the world-wide web as a site with emphasis on providing information to the public, and the site quickly gained large numbers of visitors. We rate each "hit" on our web site as equivalent of 1 minute of outreach, causing the large increase in the number of outreach days in 1995. We separate the outreach into the categories : web site contacts and all other forms in the following table:
|
Fiscal Year |
Outreach hours separated into web-based and other forms |
||
|
Web-based |
other |
||
|
1991 |
0 |
209 |
|
|
1992 |
0 |
221 |
|
|
1993 |
0 |
249 |
|
|
1994 |
0 |
308 |
|
|
1995 |
1083 |
278 |
|
|
1996 |
4333 |
300 |
|
|
1997 |
6500 |
312 |
|
|
1998 |
9750 |
325 |
|
|
1999 |
4333 |
307 |
|
|
2000 |
Not available |
Not available |
|
|
% change |
+ |
+47% |
|
Many outreach activities are driven by local interest in earthquakes, which in turn are driven by local seismic activity or earthquakes in the news. Some of the variability, and perhaps the drop in interest in our web site in 1999, can be attributed to low seismicity in Nevada.
Caseload 3. Research Grants and Contracts.
A third component of the responsibilities approved by the Board of Regents for the Seismological Laboratory is "to carry out research of national and international significance." Because such research needs to be funded by Federal sources in general, dollar total of contracts and grants that are received by the Seismological Laboratory faculty is an appropriate measure. It is important to emphasize that the existence of a stable core of funding from the state, within a university, has been critical for attracting and retaining faculty who are capable of raising Federal research funds.
Research using these funds has naturally been primarily focused on Nevada. A majority has always been for the operation of the seismic networks, in the western Great Basin and since 1992 in southern Nevada, focused on Yucca Mountain, for the Department of Energy. (The large funding in 1993-1995 included equipment support for modernizing the network around Yucca Mountain.) Indeed, our success in competing for Federal funds is the only reason we have been able to operate any network at all. Other research projects have focused on more advanced analysis of the Nevada data, for instance to understand specific earthquakes in detail or to investigate aspects of the hazard. A variable fraction of this external funding has been for generic studies or focused on regions outside of Nevada.
Section 6. Budgeted Positions / Vacancies
Personnel in the Nevada Seismological Laboratory are as follows:
|
Position |
Person |
Percent of salary received through the Seismological Laboratory state funds |
Source of remainder of appointment |
|
Director, Professor of Geophysics |
John Anderson |
0.51 |
Department of Geological Sciences |
|
Research Scientist, Professor of Geophysics |
James Brune |
0.69 |
Department of Geological Sciences |
|
Research Scientist, Associate Professor of Geophysics |
John Louie |
0.60 |
Department of Geological Sciences |
|
Electronics Engineer |
Walter Nicks |
1.0 |
|
|
Research Assistant |
Robert Abbott |
1.0 |
Summer salary support comes from research grants |
|
Administrative Assistant 2 |
Pamela Love |
1.0 |
In summary, the Seismological Laboratory budget supports 1.8 faculty FTE. These are shared by three full-time university faculty, with the remainder of their funding coming from the Department of Geological Sciences (Anderson, Brune, Louie). The budget also supports one Seismic Engineer (Nicks), one Departmental Secretary (Love), and one Research Assistant (Abbott). There are no vacancies at this time.
External research funds currently support six PhD level faculty (Anooshehpoor, Biasi, Smith, Su, vonSeggern, Zeng), one MS level administrative faculty (dePolo), 4 classified staff (Abourto, Holzgrafe, Torrisi, Wilson), and several graduate students and undergraduate students.
In our budget requests for every biennium, the Seismological Laboratory has proposed that it is in the State of Nevadas best interests to supplement the state-funded budget. The Seismological Laboratory finds that total dependence on Federal priorities for instrumental investigations within Nevada are not in the best interests of the State of Nevada or its citizens. For instance because of its lower hazard, Las Vegas is has not been a Federal priority for earthquake monitoring (explaining our lack of stations near Las Vegas), even though some seismicity does occur near there and a large earthquake is possible. In addition, we would like to establish an office in Las Vegas for outreach and to concentrate on the development of a seismic network there. On the other hand, we are currently optimistic that revised Federal priorities under the Advanced National Seismic System (described below) will allow us to achieve these objectives, and would recommend waiting to determine if that program will be supported by Congress.
Section 7. Alternate Provider(s) of Services
None.
The nearest organizations that might be considered an alternate provider are the US Geological Survey and the University of California at Berkeley, which are able to locate large earthquakes in Nevada. This is fortunate, as the US Geological Survey is able to afford to have personnel on duty 24 hours a day, but the Seismological Laboratory is not funded or staffed for that purpose. Locations from these organizations generally utilize data obtained by the Seismological Laboratory, as we are now highly interconnected over the internet with other seismic networks. We are also able to locate California earthquakes and may become a backup for either the northern or southern California networks in the event that they need our help. Usually, however, the locations provided by USGS or Berkeley use only a few of the Seismological Laboratory stations, and are not as reliable as those obtained using our full network.
There is no other organization dedicated to analysis of earthquakes in Nevada or providing the kind of outreach with earthquake information provided by the Seismological Laboratory. In some cases, the Seismological Laboratory refers questions on active faulting to the Nevada Bureau of Mines and Geology, as they employ geologists whose responsibility is to map and characterize active faults. Likewise, the NBMG refers questions on earthquakes, earthquake history, ground motions, and seismic risk to the Seismological Laboratory.
Section 8. Performance / Outcome Measures
This section examines and expands upon the performance of the Seismological Laboratory systematically on the list of activities approved by the Regents.
1. Operate a network of seismic stations in the Nevada region.
Whenever an earthquake affects Nevada, the only reliable information about the source of the earthquake is obtained from instrumental recordings. Caseload 1, above, seeks to measure the size and capability of our network of seismic stations. The problem is more complex than it is made to appear in that section, and these paragraphs therefore elaborate to some extent. Equipment for the Nevada seismic network was obtained entirely with external funds.
Data from the instruments in a modern seismic network are sent by telemetry to a central seismic station. At present the Nevada seismic network data is collected and analyzed in Reno using a microwave network stretching along the southwestern border of Nevada from Reno to Las Vegas, with additional legs reaching into central Nevada. The extent of this microwave network is shown in Figure 4.
Seismic instrumentation can be classified into two different categories, "high gain" and "strong motion". High gain instruments are optimized to record and locate all earthquakes from the smallest detectable to large sizes, while strong motion instruments are optimized to obtain well calibrated records of only the strongest earthquakes (i.e. strong enough to be felt) for applications to engineering design. The traditional role of the seismic network such as the Seismological Laboratory is to operate high gain instruments, and that has been our traditional focus.
High gain instruments can in turn be classified into at least two separate types. The first is the older type of instruments, which can be described as "analog" instruments. In a sense, the label "analog" now applies more to the telemetry than to anything else: the signal is transmitted the way voice is carried over the telephone. The newer instruments can be described as "digital" in that the signal is transmitted in a manner analogous to the way a computer sends data over the telephone through a modem. Figure 5 shows a comparison of seismograms obtained for the same earthquake in California, some with older analog and some with newer digital instruments. It is clear that the data from a digital instrument is much higher quality, and can address many more scientific objectives. Digital equipment can detect smaller earthquakes and thus more earthquakes. Earthquakes can be located more precisely, and the sizes of the earthquakes can be determined more rigorously and consistently.
In 1991, the Nevada seismic network was almost entirely analog. The extent of the network has always predominantly been controlled by Federal funding priorities. (It is fair to say that the Nevada Seismological Laboratory has earned sufficient respect through the high quality of its personnel that it has been able to influence Federal priorities to some extent.) In 1991, the network was primarily focused on a limited region from Mammoth Lakes north to about the latitude of Reno, and from Lake Tahoe on the west to the "Central Nevada Seismic Belt", the source of the magnitude 7 earthquakes in 1954, on the east (Figure 6). Our list of station locations in 1991 contains 86 stations, ten of which incorporated early versions of digital telemetry (but not to modern standards). Within the best sections of the network, earthquakes could be detected to magnitudes of about 2.0.
In early 2000, our network was about 50% state-of-the-art digital equipment. The network extended south to the Nevada test site, and the extension of the microwave network to southern Nevada allowed us to install two state-of-the-art digital stations outside of Las Vegas (Figure 7). (A third digital station outside of Las Vegas had been awaiting a land-use permit from the Bureau of Land Management for over a year.)
The Nevada seismic network has been extended gradually since its inception. Our state-funded engineer has provided the continuity and expertise to develop this network without significant operating funds from Nevada. The philosophy has been to pursue Federal funds wherever Federal priorities might be in the area, and link the stations into our microwave network. When the Federal priorities have changed, the instruments are generally released to the university, and due to the low telemetry costs using the microwave network, we have generally been able to keep the equipment operating and justified obtaining operating costs from other programs.
In addition, the Seismological Laboratory has recently been adding strong motion instruments to its network. Utilizing funds from FEMA, in 1999 we installed 5 strong motion instruments in the Reno-Carson region, and were awaiting delivery of 4 instruments for installation in Las Vegas.
A Federal initiative is underway in early 2000 that is expected to result in a significant upgrade and likely completion of the Nevada seismic network. This plan, called the Advanced National Seismic System (ANSS), was proposed by the Council of National Seismic Systems, of which Nevada is a member. The ANSS would upgrade seismic networks throughout the US to digital equipment, dramatically increase the number of strong motion instruments, and increase operating budgets to achieve realistic levels of earthquake monitoring effort. The ANSS had been authorized by the House of Representatives in 1999 by bill HR1184 by a bipartisan majority of 414-3-16. Senate action was anticipated in 2000. (Senate action was delayed as it required action by a committee chaired by Senator McCain, who in late 1999 and early 2000 was involved in a presidential campaign.) Even without authorization, early appropriations have been made to the ANSS. In Federal FY2000, the Administration requested, and Congress approved, $1.6 million to begin installation of ANSS with sites in San Francisco, Seattle, and Salt Lake City. For Federal FY2001, the Administration requested $4.2 million to continue installation of ANSS with upgraded equipment in Nevada, Alaska, Memphis, San Francisco, Seattle, and Salt Lake City. This demonstrated Administration support also for the ANSS. The plans assume that the Seismological Laboratory will be the lead agency in Nevada. Our expectation is that ANSS will have the following effects: increase the density of our seismic network around Las Vegas (which is currently outside of the area where our coverage is complete at the magnitude 1-2 level) and maybe provide a statewide telemetry network and coarse seismic network, upgrade many existing stations to modern standards, install 300 strong motion instruments in the state, mainly in Reno and Las Vegas, and fund the Seismological Laboratory to establish near-real-time capability of locating and reporting earthquake locations and expected effects.
2. Analyze the data obtained with the Nevada seismic network.
This is intimately related to item number 1, as the data from a seismic network is of no use unless it is analyzed. Basic analysis includes locating earthquakes and estimating magnitudes. This analysis has been partially supported by Federal funds, but has also made use of the research assistant provided by the state funding. The importance of this work is highly visible whenever an earthquake occurs and the Seismological Laboratory is called upon to inform reporters and the public about the earthquake location, active faults, and other basic data. The majority of this interaction is released over telephone calls and interviews with television crews. We do not have records about the numbers of interviews that have been provided in this way. After significant earthquakes, the Seismological Laboratory also prepares a "press release" which is distributed by email and fax to interested parties on our mailing list. The following table summarizes the numbers of press releases of this nature by year:
|
Year |
Number of press releases |
|
1991 |
|
|
1992 |
|
|
1993 |
|
|
1994 |
6 |
|
1995 |
10 |
|
1996 |
2 |
|
1997 |
8 |
|
1998 |
8 |
|
1999 |
8 |
|
2000 |
Not available |
The Seismological Laboratory is moving towards having automated analysis of the earthquake locations and automated posting of locations on the world wide web. However, these automated locations always require checking by a seismologist before they can be considered reliable.
3. Compile data on historic and current earthquake activity in and around the State of Nevada.
A fundamental source of information on earthquake activity can be considered the Nevada seismic catalog. This is compiled after the analysis of all events recorded by the seismic network. The catalog is, since 1995, accessible on the world wide web (http://www.seismo.unr.edu/Catalog/catalog-search.html). The catalog search is accessed from the main web page, via the link to "Earthquakes in Nevada and Around the World". The figures of Nevada earthquakes (Figure 1a,b) are obtained directly from our web site, without further editing, from searching this catalog. The following table gives the yearly event count from our networks
|
Year |
Number of earthquakes |
|
1991 |
3383 |
|
1992 |
5019 |
|
1993 |
7060 |
|
1994 |
5141 |
|
1995 |
2692 |
|
1996 |
4057 |
|
1997 |
4987 |
|
1998 |
4036 |
|
1999 |
4928 |
|
2000 |
Not available |
In addition to the internet, the Seismological Laboratory faculty publish papers on earthquakes in Nevada. Publications are completed or in press for all of the most significant earthquake sequences since 1990. The following is a partial list of papers dealing specifically with characteristics of earthquakes and ground motions in Nevada:
Anderson, J. G., J. N. Brune, D. dePolo, J. Gomberg, S. C. Harmsen, M. K. Savage, A. F. Sheehan, and K. D. Smith (1993). Preliminary report: the Little Skull Mountain earthquake, June 29, 1992, in Dynamic Analysis and Design Considerations for High-Level Nuclear Waste Repositories, Q. Hossain, editor, Structural Division, American Society of Civil Engineers, 162-175.
Anderson, J. G., J. N. Brune, J. Louie, Y. Zeng, M. Savage, G. Yu, Q. Chen, D. dePolo (1994). Seismicity in the western Great Basin apparently triggered by the Landers, California earthquake, 28 June 1992, Bulletin of the Seismological Society of America 84, 863-891.
Goter, S. K., ", Oppenheimer, D.H., Mori, J.J., Savage, M.K., and Masse, R.P. (1994). Earthquakes in California and Nevada USGS OFR 94-647.
Anderson, J. G., M. Savage, and R. Quaas (1995). "Strong" ground motions in North America from the Bolivia earthquake of June 8, 1994 (MW=8.3), Geophysical Research Letters 22, 2293-2296.
Savage, M. K. and J. G. Anderson (1995). A local magnitude scale for the western Great Basin - eastern Sierra Nevada from synthetic Wood-Anderson seismograms, Bull. Seism Soc. Am. 85, 1236-1243.
Anderson, J. G., S. G. Wesnousky, and M. W. Stirling (1996). Earthquake size as a function of fault slip rate, Bull. Seism. Soc. Am. 86, 683-690.
Su, F., J. G. Anderson, J. N. Brune, Y. Zeng (1996). A comparison of direct S-wave and coda wave site amplification determined from aftershocks of the Little Skull Mountain earthquake, Bull. Seism. Soc. Am. 86, 1006-1018.
dePolo, C., J. G. Anderson, D. dePolo, J. Price (1996). Earthquake occurrence in the Reno - Carson City urban corridor, Seismological Research Letters 68, 401-412.
Ichinose, G. A., K. D. Smith and J. G. Anderson (1996). Source parameters of the 15 November 1995 Border Town, Nevada, earthquake sequence, Bulletin of the Seismological Society of America 87, 652-667.
Anderson, J. G. (1997). Benefits of scenario ground motion maps, Engineering Geology 48, 43-57.
Ni, S.-D., R. Siddharthan, and J. G. Anderson (1997). Characteristics of nonlinear response of deep saturated soil deposits, Bull. Seism. Soc. Am. 87, 342-355.
Su, F., J. G. Anderson, S.-D. Ni, and Y. Zeng (1998). Effect of site amplification and basin response on strong motion in Las Vegas, Nevada, Earthquake Spectra 14, 357-376.
dePolo, D. M. and C. M. dePolo (1998). Earthqakes in Nevada 1852-1998, 1:1,000,000, Map 111, Nevada Bureau of Mines and Geology.
Ichinose, Gene A., Kenneth D. Smith, and John G. Anderson (1998). Moment tensor solutions of the 1994to 1996 Double Spring Flat, Nevada, earthquake sequence and implications for local tectonic models, BSSA 88, 1363-1378.
Gene A. Ichinose, Kenneth D. Smith, And John G. Anderson (1999). Seismic Analysis Of The 7 January 1998 Chemical Plant Explosion At Kean Canyon, Nevada, Bull. Seism. Soc. Am. 89, 938-945.
Gene Ichinose, John Anderson, Kenneth Smith, Diane Depolo, and Rasool Anooshehpoor, Rich Schweickert and Mary Lahren (1999). The Seismotectonics of the 30 October 1998 Incline Village, Nevada Earthquake and its Effects, Seismological Research Letters 70, 297-305
Anderson, J. G. and J. N. Brune (1999). Methodology for using precarious rocks in Nevada to test seismic hazard models, Bull. Seism. Soc. Am 89, 456-467.
Gene A. Ichinose, Kenji Satake, John G. Anderson, Rich A. Schweickert and Mary M. Lahren (2000).
The potential hazard from tsunami and seiche waves generated by future large earthquakes within the Lake Tahoe basin, California-Nevada, Geophysical Research Letters (in press).
4. Serve as a repository of information and exchange of information on earthquake activity in Nevada and adjoining states.
The Seismological Laboratory is a repository for seismograms from Nevada going back to 1915. Our seismogram library is a repository for scholars throughout the world seeking information on historical earthquakes.
Our faculty are highly knowledgeable and highly respected for their knowledge about earthquake activity in Nevada. An example of the importance of this to Nevada can be identified in the development of the current national seismic hazard map by the U. S. Geological Survey. In a series of meetings in 1996, the USGS developed the input to this hazard map. Seismological Laboratory personnel were deeply involved in the revision and improvement of that input. The resulting map is now a part of the 2000 International Building Code. Without the input from Nevada personnel, the map for this part of the western US would have been quite different. The next revision to the national hazard map is now being planned, with workshops to develop input expected for late 2000 or early 2001.
The numbers of scientific papers would be one measure of the extent of this outreach. The following table gives the numbers of scientific papers authored or co-authored by state-funded faculty in the Seismological Laboratory in major research journals:
|
Year |
Number of papers |
|
1991 |
18 |
|
1992 |
8 |
|
1993 |
13 |
|
1994 |
19 |
|
1995 |
16 |
|
1996 |
17 |
|
1997 |
16 |
|
1998 |
19 |
|
1999 |
15 |
|
2000 |
not available |
5. Provide for education of the public in matters related to seismicity and earthquake risk in the Nevada region.
The Seismological Laboratory outreach program has been described briefly above as Caseload 2, and the tables in Section 4 provide an approximate evaluation of the extent of this outreach.
Some other aspects of outreach deserve comment. One is education of students in any of the earth science programs at the MSM. Because of the joint appointments of the faculty, students are able to get involved in research projects, for the benefit of their education, and there is a formalized structure that allows the Seismological Laboratory faculty to transfer their knowledge to students. The financial support students receive as employees of the Seismological Laboratory aids their recruitment to UNR. As part of their responsibilities to the Department of Geological Sciences, the three faculty in the Seismological Laboratory have taught the following classes:
|
Course Number |
Course Name |
|
GEOL 100 |
Geology: Principles and Applications |
|
GEOL 101-102 |
General Geology |
|
GEOL 453 |
Geophysical Applications |
|
GEOL 455 |
Geophysics and Geodynamics |
|
GEOL 456 |
Plate Tectonic Theory |
|
GE 479 |
Earthquake Engineering |
|
GEOL 490 |
Elementary Seismology |
|
GEOL 492 |
Environmental Exploration Geophysics |
|
GEOL 701v |
Advanced Geology Seismology |
|
GEOL 702v |
Advanced Geology Seismology |
|
GEOL 705 |
Inverse Problems for Earth Scientists |
|
GEOL 706 |
Geophysical Series and Processing |
|
GEOL 756 |
Earthquake Source Physics |
|
GEOL 757 |
Seismic Imaging |
|
GEOL 758 |
Seismic Instrumentation and Data Analysis |
|
GEOL 774 |
Advanced Seismology 1 |
|
GEOL 775 |
Advanced Seismology 2 |
Because this review is focused on the Seismological Laboratory, we did not develop statistics on the number of courses taught, but can state that the teaching load has equaled or exceeded the level of teaching required of all other faculty when that adjusted for the proportion of each appointment in the Geological Sciences Department.
It is appropriate to expand on the nature of the outreach that deals with the general public. Part of this is cyclical, depending on the amount of attention that earthquakes are attracting in the Nevada news. Earthquakes in Nevada that are felt in one of the two major population centers are the most important mechanism of initiating inquiries to members of the Seismological Laboratory. Thus, for instance, 1994 had the Double Spring Flat earthquake (M=6) south of Gardnerville and felt throughout the Reno-Carson urban corridor. In response to that, we received large numbers of requests to make presentations to civic groups. Our impression is that the number of requests was lower in 1999 as earthquake news was been more focused on other regions of the world and Nevada had the second quietest years of the decade. We believe that the Seismological Laboratory has been effective in responding to all of the requests from citizens of Nevada, and our goal is to continue to be responsive in that way.
We initiate a significant part of our outreach. The table below identifies our more significant outreach activities:
|
Years Active |
Activity |
Detailed Description |
|
1991-2000 |
Response |
Our goal is to answer all questions from members of the Nevada citizenry or anyone else in the world with the latest information about earthquakes in Nevada. |
|
1999-2000 |
Calendar |
For 1999 and 2000, we have taken the leadership in preparing an educational earthquake calendar. We have raised funds to place one calendar in every classroom in Nevada. Pictures focused on earthquake awareness are selected from the best of those submitted by students from throughout the state. Mailing of the calendars has been paid by Sierra Pacific Power Company. |
|
1991-2000 |
Seismo Watch |
While we do not seek to write a newspaper column on earthquakes, we support anyone who may seek to do that by preparing weekly summaries of seismicity in time for column deadlines. Charles Watson of Reno has regularly used this in his "Seismo Watch" column in the Reno Gazette Journal |
|
1997-1999 |
State Fair |
As a part of the Mackay School of Mines, we have occupied a booth at the Nevada State Fair. |
|
1991-2000 |
Earthquake Awareness Week |
Each year the Governor has declared an Earthquake Awareness Week. We are key participants in this event. The number of activities that we have tried has been variable over time. Since 1998, the earthquake drill in the local schools has been aiming to train the press and of the students to what they should do in the event of a significant earthquake. Other activities have included tours of the Seismological Laboratory, establishing booths at shopping centers, public lectures, etc. |
|
1995-2000 |
World wide web |
Statistics on visits to our site on the world wide web are given above. This is the method of outreach that reaches the greatest number of people, judging from the numbers of visits we get which has consistently been at least 4500/day and sometimes much more. Popular sites on this are John Louies basic descriptions of seismic and plate tectonic subjects, pages showing Nevada seismicity, the page showing the real-time picture of one of our seismographs. |
|
1991-2000 |
Tours |
We seek to accommodate any school or individual desiring a tour of the Seismological Laboratory. Typical tours last about 30 minutes, but we also can give more involved exercises, especially for more advanced students, such as having the students look at a set of seismograms and locate an earthquake. |
|
1991-2000 |
Teacher training |
On demand, we give workshops to teachers together with giving the teachers materials for their students such as an in locating earthquakes. |
|
1991-2000 |
Scientific |
This is not a particularly visible element of our outreach but in some ways it is most important. For instance, when the USGS was developing the current generation of seismic hazard maps for the United States, Seismological Laboratory members attended meetings and organized one meeting to be sure that the input to that model for the state of Nevada was consistent with our knowledge of the state-of-the-art. The results of this interaction had a significant impact on the resulting models, which in turn will have a significant impact on seismic resistant design in the state. |
6. Carry out grant- and contract- supported research on earthquake problems of national importance.
Contract and grant research has been described above as Caseload 3. For the past decade, every dollar of state support has yielded $6.1 dollars of external support. Understanding the seismic activity in Nevada is established as a research problem of national importance, as evidenced by the research funds described above which support the seismic network and associated research on Nevada problems, and that is expected to continue. Federal priorities are likely to place a greater emphasis on Nevada for the short-term future. The National Science Foundation is planning a large facility called Earthscope (a telescope into the planet) which may have a significant component in Nevada. Faculty in the Seismological Laboratory are part of the development process and anticipate that this facility can advance our priorities of monitoring earthquakes and characterizing hazards across the state in addition to our opportunities to carry out a wide range of research. A future direction for fully understanding seismic hazards is to also monitor ground deformation using the Global Positioning System (GPS). We already bring some GPS data into Reno using our microwave network, and under earthscope that may increase significantly. Earthscope is expected to include a significant GPS component, which should give control over the deformation which in turn is directly related to earthquake rates.
The organizational structure approved by the Regents for the three faculty who are funded in part through the Seismological Laboratory demonstrates wisdom. The joint appointment in the Seismological Laboratory and in the Department of Geological Sciences results in contact with students, increases the opportunities for qualified students to participate in the exciting research that is currently going on, and promotes training of qualified students for careers in seismology and geophysics in general. The teaching responsibilities also assure that the latest seismological information makes its way into the classroom. It is important for us to be among the teaching faculty of the university. For instance the NBMG faculty, because they are not formally involved with students, have greater difficulties winning competitive Federal research funds.
7. Consider such other kindred scientific and economic questions as in the judgment of the Board of Regents shall be deemed of value to the people of the State.
The Seismological Laboratory has not been the recipient of large numbers of questions of this nature. Such requests, if any, would be expected to come through the Dean of the Mackay School of Mines. The Director of the Seismological Laboratory reports to the Dean, and works closely to identify if there are significant ways for the Seismological Laboratory to contribute to the smooth operations of the Mackay School of Mines. Personnel in the Seismological Laboratory have been active in many types of service to MSM. A systematic enumeration of these will not be undertaken. Two examples would be the contribution of our computer expertise to improvements throughout the rest of MSM, and our personnel taking leadership in discussions of the academic future of MSM.
The Director also is in close contact with the Director of the Nevada Bureau of Mines and Geology, who also reports to the Dean of the Mackay School of Mines. The Nevada Bureau of Mines and Geology is well-organized for publication and distribution of maps and reports, which has resulted is several joint publications for the benefit of the public.
Figures are in a separate presentation
Modified Zero Based Budget Justification (Shiveley will do)
1. Detailed description of all revenue. Funding from the State of Nevada as is described above. Revenue from Federal research grants should not be counted here. It is important to recognize that the funds from the state are essential to provide a stable position that can attract and retain the key people in the organization. It would be impossible to either attract or retain outstanding scientists capable of maintaining the level of research funding described above if they were themselves required to be on "soft" external research dollars. It is important for us to be within the teaching faculty of the university. Even the NBMG, because their faculty are not formally involved with students, have difficulty winning competitive Federal research funds.
2. Vacant positions. There are no vacant positions at this time.
3. Caseload ratios. There is no budgeted caseload ratio and it is impossible to define an actual caseload ratio. This question may make sense for a department like Motor Vehicles, where caseload can be measured in terms of numbers of licenses issued, but for our department it is not applicable.
4. Out of state travel. All travel by Seismological Laboratory personnel is paid by Federal research funds.
5. In state travel. All travel by Seismological Laboratory personnel is paid by Federal research funds.
6. Training expenses. Training occurs only when the departments Management Assistant undergoes a change of persons. In this case, because of the nature of the office, most training is on-the-job, and no specific funds are drawn from the Seismological Laboratory budget for this purpose.
7. Justification for continuing operating expenses. Operating funds are minimal. Out of about $10,000, in FY2000 all but $1000 were returned to the University for "salary savings".