Faculty/Staff


von Seggern, David

Status: Emeritus Seismic Network Manager

Biographical Sketch for: David H. von Seggern

E-mail: vonseg@seismo.unr.edu



EDUCATION:

St. Louis U., B.S., Geophysics, 1966

U. Hawaii, M.S., Geophysics, 1968

Penn State U., Ph.D., Geophysics, 1982



POSITIONS HELD:

Seismic Analyst/Seismologist, Teledyne Geotech, Alexandria, VA, 1967-1982

Systems Analyst/Associate Seismologist, Phillips Petroleum Co., Bartlesville, OK, 1982-1992

Seismic Network Manager, Nevada Seismological Laboratory, U. Nevada, 1992-2005

Seismic Network Manager Emeritus, Nevada Seismological Laboratory, 2005-present



SCIENTIFIC CONTRIBUTIONS:

1) Developed a widely-used empirically-based seismic source model for underground nuclear explosions.

2) Made a number of published contributions in the study of underground nuclear explosions, including observed wave propagation, statistical treatment of magnitudes, and detection and location methodology.

3) In one of the first applications of fractals to earthquakes, showed the relation of b-value, stress inhomogeneity, and liklihood of large ruptures.

4) Authored a complete reference book on mathematical curves and surfaces (CRC Standard Curves and Surfaces).

5) Defined 3-D image resolution based on the point-reflector model for seismic exploration, leading to a description of the performance of various 3-D seismic survey configurations.

6) Analyzed and reported the seismicity in the vicinity of Yucca Mountain, Nevada, the site of the USA's potential underground nuclear waste storage, for thirteen years.



SELECTED PUBLICATIONS:

von Seggern, D., The effects of radiation patterns on magnitude estimates, Bull. Seismol. Soc. Amer., v. 60, pp. 503-516, 1970.

von Seggern, D., and D. G. Lambert, Theoretical and observed Rayleigh-wave spectra for explosions and earthquakes, J. Geophys. Res., v. 75, pp. 7382-7402, 1970.

von Seggern, D., Relative location of seismic events using surface waves, Geophys. J., v. 26, pp. 499-513, 1972.

von Seggern, D., and R. Blandford, Source time functions and spectra for underground nuclear explosions, Geophys. J., v. 31, pp. 83-97, 1972.

von Seggern, D., Seismic surface waves from Amchitka Island Test Site events and their relation to source mechanism, J. Geophys. Res., v. 78, pp. 2467-2474, 1973.

von Seggern, D., Joint magnitude determination and analysis of variance for explosion magnitude estimates, Bull. Seismol. Soc. Amer., v. 63, pp. 827-845, 1973.

von Seggern, D., and R. Blandford, Seismic threshold determination, Bull. Seismol. Soc. Amer., v. 66, pp. 753-788, 1976.

von Seggern, D., Amplitude-distance relation for 20-second Rayleigh waves, Bull. Seismol. Soc. Amer., v. 67, pp. 405-411, 1977.

von Seggern, D., and P. A. Sobel, Applications of surface-wave ray tracing, Bull. Seismol. Soc.Amer., v. 68, pp. 1359-1380, 1978.

von Seggern, D., A random stress model for seismicity statistics and earthquake prediction, Geophys. Res. Letters, v. 7, pp. 637-640, 1980.

von Seggern, D., S. S. Alexander and C.-E. Baag, Seismicity parameters preceding moderate to major earthquakes, J. Geophys. Res., v. 86, pp. 9325-9351, 1981.

von Seggern, D., Spatial resolution of acoustic imaging with the Born approximation, Geophysics, v. 56, pp. 1185-1202, 1991.

von Seggern, D., Depth imaging resolution of 3-D seismic recording patterns, Geophysics, v. 59, pp. 564-576, 1994.

von Seggern, D., Practical Handbook of Curve Design and Generation, CRC Press, 1994.

von Seggern, D., and J. N. Brune, Seismicity in the southern Great Basin, in USGS Digital Data Series DDS-058, Geologic and Geophysical Characterization Studies of Yucca Mountain, Nevada, a Potential High-Level Radioactive-Waste Repository, 2001.

von Seggern, D., CRC Standard Curves and Surfaces, with Mathematica, Taylor & Francis, 2007.

von Seggern, D. H., K. D. Smith, and L. A. Preston, Seismic Spatial-Temporal Character and Effects of a Deep (25-30 km) Magma Intrusion below North Lake Tahoe, California-Nevada, Bull. Seism. Soc. Amer., v. 98, pp. 1508-1526, 2008.

Contacts:


Home Page: http://crack.seismo.unr.edu/htdocs/admin/VONSEG/home.html
Phone: 784-4242
E-mail: click to email