Event 646680 Waveforms Moment Tensor Graphs
Summary:
Map includes seismicity in the last 60 days within 55 Km of this event.
Magnitude (ML)3.51
Region 5.8 mi NNE of Tahoe_City
Date time 2018-07-26 at 07:22:25.252 UTC
2018-07-26 at 00:22:25.252 PDT
Location 39.2284 ; -120.1018
Depth 9.00 km
RMS 0.1581
Gap 065
Stations 38
Defining Phases 59
Associated Phases 101
Type Local
Status Reviewed
Page Updated 2018-07-30 at 16:01:32.817
REVIEWED BY NSL STAFF

Event ID:646680
Origin ID:1731067
Algorithm: Ichinose (2003) Long Period, Regional-Distance Waves
Seismic Moment Tensor Solution

2018/07/26 (207) 07:22:26.00 39.2281 -120.1045 1731065
	Depth =  10.0 (km)
	Mw    =  3.42
	Mo    =  1.66x10^21 (dyne x cm)

	Percent Double Couple =  95 %
	Percent CLVD          =   5 %
	no ISO calculated
	Epsilon=-0.03
	 Percent Variance Reduction =  48.15 %
	 Total Fit                  =  7.88 
	Major Double Couple
		            strike dip   rake
		Nodal Plane 1: 253  72   -8
		Nodal Plane 2: 345  82 -162

	DEVIATORIC MOMENT TENSOR

	Moment Tensor Elements: Spherical Coordinates
		Mrr= -0.17 Mtt= -0.75 Mff=  0.92
		Mrt=  0.31 Mrf= -0.43 Mtf=  1.33 EXP=21


	Moment Tensor Elements: Cartesian Coordinates
		-0.75 -1.33  0.31
		-1.33  0.92  0.43
		 0.31  0.43 -0.17

	Eigenvalues:
		T-axis eigenvalue=  1.68
		N-axis eigenvalue= -0.04
		P-axis eigenvalue= -1.64

	Eigenvalues and eigenvectors of the Major Double Couple:
		T-axis ev= 1.68 trend=118 plunge=7
		N-axis ev= 0.00 trend=7 plunge=70
		P-axis ev=-1.68 trend=210 plunge=18

	Maximum Azmuithal Gap=193 Distance to Nearest Station= 28.1 (km)

	Number of Stations (D=Displacement/V=Velocity) Used=9 (defining only)
		
	 ZPR.NN.D REDF.NN.D PNT.NN.D BEK.NN.D
	 YER.NN.D PAH.NN.D WAK.NN.D KVN.NN.D
	 LHV.NN.D


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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)    
ZPR.NN (D) 	Y 	    28.1  	150  	330  	0.020 	0.080 ZPR.NN.wus.glib
REDF.NN (D) 	Y 	    34.7  	 59  	239  	0.020 	0.080 REDF.NN.wus.glib
PNT.NN (D) 	Y 	    46.1  	109  	290  	0.020 	0.080 PNT.NN.wus.glib
BEK.NN (D) 	Y 	    74.6  	343  	163  	0.020 	0.080 BEK.NN.wus.glib
YER.NN (D) 	Y 	    79.1  	109  	290  	0.020 	0.080 YER.NN.wus.glib
PAH.NN (D) 	Y 	    81.4  	 49  	229  	0.020 	0.080 PAH.NN.wus.glib
WAK.NN (D) 	Y 	    99.2  	144  	325  	0.020 	0.080 WAK.NN.wus.glib
KVN.NN (D) 	Y 	   173.9  	 96  	277  	0.020 	0.080 KVN.NN.wus.glib
LHV.NN (D) 	Y 	   176.5  	128  	309  	0.020 	0.080 LHV.NN.wus.glib

 (V)-velocity (D)-Displacement

Author: www-data
Date: 2018/07/26 08:25:54

mtinv Version 2.1_DEVEL OCT2008

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