Summary:
| Map includes seismicity in the last 60 days within 55 Km of this event. | ||
| ► Magnitude (ML) | 4.13 | |
| ► Region | 18.3 mi SW of Fallon | |
| ► Date time | 2026-05-01 at 08:15:55.842 UTC 2026-05-01 at 01:15:55.842 PDT | |
| ► Location | 39.3035 ; -119.0377 | |
| ► Depth | 10.75 km | |
| ► RMS | 0.1742 | |
| ► Gap | 110 | |
| ► Stations | 36 | |
| ► Defining Phases | 48 | |
| ► Associated Phases | 104 | |
| ► Type | Local | |
| ► Status | Reviewed | |
| ► Page Updated | 2026-05-01 at 01:38:04.819 | |
REVIEWED BY NSL STAFF
Event ID:916977
Origin ID:2366745
Algorithm: Ichinose (2003) Long Period, Regional-Distance Waves
Seismic Moment Tensor Solution
2026/05/01 (121) 08:15:57.00 39.3035 -119.0377 001
Depth = 7.0 (km)
Mw = 4.28
Mo = 3.22x10^22 (dyne x cm)
Percent Double Couple = 99 %
Percent CLVD = 1 %
no ISO calculated
Epsilon=0.00
Percent Variance Reduction = 91.55 %
Total Fit = 45.88
Major Double Couple
strike dip rake
Nodal Plane 1: 324 72 -176
Nodal Plane 2: 233 86 -18
DEVIATORIC MOMENT TENSOR
Moment Tensor Elements: Spherical Coordinates
Mrr= -0.14 Mtt= -2.84 Mff= 2.99
Mrt= 0.89 Mrf= 0.42 Mtf= 0.90 EXP=22
Moment Tensor Elements: Cartesian Coordinates
-2.84 -0.90 0.89
-0.90 2.99 -0.42
0.89 -0.42 -0.14
Eigenvalues:
T-axis eigenvalue= 3.22
N-axis eigenvalue= -0.02
P-axis eigenvalue= -3.20
Eigenvalues and eigenvectors of the Major Double Couple:
T-axis ev= 3.22 trend=280 plunge=10
N-axis ev= 0.00 trend=41 plunge=72
P-axis ev=-3.22 trend=187 plunge=15
Maximum Azmuithal Gap=152 Distance to Nearest Station= 67.4 (km)
Number of Stations (D=Displacement/V=Velocity) Used=8 (defining only)
BFC.NN.D TBRD.NN.D ZPR.NN.D KVN.NN.D
MPK.NN.D CTC.NN.D WVA.NN.D RUB.NN.D
-----------------
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T ##########################################
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####################-------#################
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------- --------------
--- P -----------
All Stations defining and nondefining:
Station.Net Def Distance Azi Bazi lo-f hi-f vmodel
(km) (deg) (deg) (Hz) (Hz)
BFC.NN (D) Y 67.4 227 47 0.030 0.100 BFC.NN.wus.glib
TBRD.NN (D) Y 78.2 259 79 0.030 0.100 TBRD.NN.wus.glib
ZPR.NN (D) Y 84.3 248 67 0.030 0.100 ZPR.NN.wus.glib
KVN.NN (D) Y 85.5 109 290 0.030 0.100 KVN.NN.wus.glib
MPK.NN (D) Y 86.2 269 89 0.030 0.100 MPK.NN.wus.glib
CTC.NN (D) Y 94.5 264 83 0.030 0.100 CTC.NN.wus.glib
WVA.NN (D) Y 98.0 316 136 0.030 0.100 WVA.NN.wus.glib
RUB.NN (D) Y 99.9 254 73 0.030 0.100 RUB.NN.wus.glib
(V)-velocity (D)-Displacement
Author: www-data
Date: 2026/05/01 15:32:40 UTC
Date: 2026/05/01 08:32:40 PDT
mtinv Version 3.0.6 Thu Jan 11 16:00:25 PST 2018
index
