Summary:
| Map includes seismicity in the last 60 days within 55 Km of this event. | ||
| ► Magnitude (ML) | 3.89 | |
| ► Region | 5.7 mi NNE of Tahoe_City | |
| ► Date time | 2018-08-30 at 22:08:08.480 UTC 2018-08-30 at 15:08:08.480 PDT | |
| ► Location | 39.2283 ; -120.1056 | |
| ► Depth | 8.35 km | |
| ► RMS | 0.1636 | |
| ► Gap | 070 | |
| ► Stations | 35 | |
| ► Defining Phases | 60 | |
| ► Associated Phases | 123 | |
| ► Type | Local | |
| ► Status | Reviewed | |
| ► Page Updated | 2018-08-30 at 19:23:26.541 | |
REVIEWED BY NSL STAFF
Event ID:654041
Origin ID:1747668
Algorithm: Ichinose (2003) Long Period, Regional-Distance Waves
Seismic Moment Tensor Solution
2018/08/30 (242) 22:08:10.00 39.2283 -120.1056 1747668
Depth = 12.0 (km)
Mw = 3.71
Mo = 4.57x10^21 (dyne x cm)
Percent Double Couple = 98 %
Percent CLVD = 2 %
no ISO calculated
Epsilon=0.01
Percent Variance Reduction = 67.80 %
Total Fit = 26.95
Major Double Couple
strike dip rake
Nodal Plane 1: 249 77 -2
Nodal Plane 2: 340 88 -167
DEVIATORIC MOMENT TENSOR
Moment Tensor Elements: Spherical Coordinates
Mrr= -0.05 Mtt= -2.86 Mff= 2.91
Mrt= 0.53 Mrf= -0.92 Mtf= 3.38 EXP=21
Moment Tensor Elements: Cartesian Coordinates
-2.86 -3.38 0.53
-3.38 2.91 0.92
0.53 0.92 -0.05
Eigenvalues:
T-axis eigenvalue= 4.55
N-axis eigenvalue= 0.03
P-axis eigenvalue= -4.59
Eigenvalues and eigenvectors of the Major Double Couple:
T-axis ev= 4.55 trend=114 plunge=8
N-axis ev= 0.00 trend=350 plunge=77
P-axis ev=-4.55 trend=205 plunge=11
Maximum Azmuithal Gap=143 Distance to Nearest Station= 34.7 (km)
Number of Stations (D=Displacement/V=Velocity) Used=10 (defining only)
REDF.NN.D PNT.NN.D WDEM.NN.D BEK.NN.D
PAH.NN.D WAK.NN.D ORV.BK.D CMK6.NN.D
KVN.NN.D HATC.BK.D
##---------------
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-#################-----------------------
###################---------------#######
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#################----#######################
#############---------######################
#########-------------######################
######-----------------####################
####--------------------############# ###
#----------------------############# T ##
-----------------------############ ##
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- ----------------#########
P -----------------######
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All Stations defining and nondefining:
Station.Net Def Distance Azi Bazi lo-f hi-f vmodel
(km) (deg) (deg) (Hz) (Hz)
REDF.NN (D) Y 34.7 59 239 0.020 0.080 REDF.NN.wus.glib
PNT.NN (D) Y 46.2 109 290 0.020 0.080 PNT.NN.wus.glib
WDEM.NN (D) Y 46.6 33 213 0.020 0.080 WDEM.NN.wus.glib
BEK.NN (D) Y 74.6 343 163 0.020 0.080 BEK.NN.wus.glib
PAH.NN (D) Y 81.4 49 229 0.020 0.080 PAH.NN.wus.glib
WAK.NN (D) Y 99.3 144 325 0.020 0.080 WAK.NN.wus.glib
ORV.BK (D) Y 125.0 287 106 0.020 0.080 ORV.BK.wus.glib
CMK6.NN (D) Y 171.0 86 268 0.020 0.080 CMK6.NN.wus.glib
KVN.NN (D) Y 174.0 96 277 0.020 0.080 KVN.NN.wus.glib
HATC.BK (D) Y 211.1 327 146 0.020 0.080 HATC.BK.wus.glib
(V)-velocity (D)-Displacement
Author: www-data
Date: 2018/08/30 23:35:48
mtinv Version 2.1_DEVEL OCT2008
index
