Event 922179 Waveforms Moment Tensor Graphs
Summary:
Map includes seismicity in the last 60 days within 55 Km of this event.
Magnitude (ML)3.61
Region 10.2 mi NE of Yerington
Date time 2026-07-22 at 17:20:52.315 UTC
2026-07-22 at 10:20:52.315 PDT
Location 39.0966 ; -119.0437
Depth 9.36 km
RMS 0.1193
Gap 087
Stations 30
Defining Phases 40
Associated Phases 73
Type Local
Status Reviewed
Page Updated 2026-07-22 at 10:33:53.087
REVIEWED BY NSL STAFF

Event ID:922179
Origin ID:2379450
Algorithm: Ichinose (2003) Long Period, Regional-Distance Waves
Seismic Moment Tensor Solution

2026/07/22 (203) 17:20:53.00 39.0966 -119.0437 001
	Depth =  14.0 (km)
	Mw    =  3.50
	Mo    =  2.22x10^21 (dyne x cm)

	Percent Double Couple =  97 %
	Percent CLVD          =   3 %
	no ISO calculated
	Epsilon=0.02
	 Percent Variance Reduction =  69.60 %
	 Total Fit                  =  15.87 
	Major Double Couple
		            strike dip   rake
		Nodal Plane 1: 337  79 -178
		Nodal Plane 2: 247  88  -11

	DEVIATORIC MOMENT TENSOR

	Moment Tensor Elements: Spherical Coordinates
		Mrr= -0.06 Mtt= -1.51 Mff=  1.58
		Mrt=  0.40 Mrf=  0.11 Mtf=  1.52 EXP=21


	Moment Tensor Elements: Cartesian Coordinates
		-1.51 -1.52  0.40
		-1.52  1.58 -0.11
		 0.40 -0.11 -0.06

	Eigenvalues:
		T-axis eigenvalue=  2.22
		N-axis eigenvalue= -0.04
		P-axis eigenvalue= -2.19

	Eigenvalues and eigenvectors of the Major Double Couple:
		T-axis ev= 2.22 trend=293 plunge=6
		N-axis ev= 0.00 trend=58 plunge=79
		P-axis ev=-2.22 trend=202 plunge=9

	Maximum Azmuithal Gap=166 Distance to Nearest Station= 54.0 (km)

	Number of Stations (D=Displacement/V=Velocity) Used=7 (defining only)
		
	 BFC.NN.D RYN.NN.D ZPR.NN.D CMK6.NN.D
	 RUB.NN.D LHV.NN.D NV31.IM.D


              #----------------                             
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T #####################----------------####                 
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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 	    54.0  	245  	 65  	0.030 	0.110 BFC.NN.wus.glib
RYN.NN (D) 	Y 	    68.9  	139  	319  	0.030 	0.110 RYN.NN.wus.glib
ZPR.NN (D) 	Y 	    77.9  	263  	 83  	0.030 	0.110 ZPR.NN.wus.glib
CMK6.NN (D) 	Y 	    83.0  	 73  	254  	0.030 	0.110 CMK6.NN.wus.glib
RUB.NN (D) 	Y 	    95.6  	267  	 87  	0.030 	0.110 RUB.NN.wus.glib
LHV.NN (D) 	Y 	   105.2  	153  	334  	0.030 	0.110 LHV.NN.wus.glib
NV31.IM (D) 	Y 	   106.5  	134  	314  	0.030 	0.110 NV31.IM.wus.glib

 (V)-velocity (D)-Displacement

Author: www-data
Date: 2026/07/22 18:26:26 UTC

Date: 2026/07/22 11:26:26 PDT

mtinv Version 3.0.6 Thu Jan 11 16:00:25 PST 2018

index

Source: Nevada Seismological Laboratory


Source: Nevada Seismological Laboratory


Source: Nevada Seismological Laboratory


Source: Nevada Seismological Laboratory


Source: Nevada Seismological Laboratory


Source: Nevada Seismological Laboratory


Source: Nevada Seismological Laboratory

Note: Graphs are auto-generated: not reviewed by NSL staff