Event 431873 Waveforms Moment Tensor Graphs
Summary:
Map includes seismicity in the last 60 days within 55 Km of this event.
Magnitude (ML)3.82
Region 24.9 mi N of Alamo
Date time 2013-12-21 at 23:02:27.500 UTC
2013-12-21 at 15:02:27.500 PST
Location 37.7246 ; -115.1412
Depth 6.4557 km
RMS 0.2334
Gap 196
Stations 16
Defining Phases 23
Associated Phases 49
Type
Status Reviewed
REVIEWED BY NSL STAFF

Event ID:431873
Origin ID:1070906
Algorithm: Ichinose (2003) Long Period, Regional-Distance Waves
Seismic Moment Tensor Solution

2013/12/21 (355) 23:02:28.00 37.7246 -115.1412 001
	Depth =  10.0 (km)
	Mw    =  3.58
	Mo    =  2.95x10^21 (dyne x cm)

	Percent Double Couple =  93 %
	Percent CLVD          =   7 %
	no ISO calculated
	Epsilon=0.03
	 Percent Variance Reduction =  18.64 %
	 Total Fit                  =  2.45 
	Major Double Couple
		            strike dip   rake
		Nodal Plane 1: 229  44  -64
		Nodal Plane 2:  14  51 -113

	DEVIATORIC MOMENT TENSOR

	Moment Tensor Elements: Spherical Coordinates
		Mrr= -2.68 Mtt=  0.65 Mff=  2.03
		Mrt=  0.58 Mrf= -0.78 Mtf=  1.37 EXP=21


	Moment Tensor Elements: Cartesian Coordinates
		 0.65 -1.37  0.58
		-1.37  2.03  0.78
		 0.58  0.78 -2.68

	Eigenvalues:
		T-axis eigenvalue=  2.89
		N-axis eigenvalue=  0.10
		P-axis eigenvalue= -2.99

	Eigenvalues and eigenvectors of the Major Double Couple:
		T-axis ev= 2.89 trend=120 plunge=4
		N-axis ev= 0.00 trend=29 plunge=18
		P-axis ev=-2.89 trend=222 plunge=72

	Maximum Azmuithal Gap=230 Distance to Nearest Station= 35.9 (km)

	Number of Stations (D=Displacement/V=Velocity) Used=3 (defining only)
		
	 PRN.NN.D SHP.NN.D PSUT.UU.D


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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)    
PRN.NN (D) 	Y 	    35.9  	167  	347  	0.020 	0.080 PRN.NN.wus.glib
SHP.NN (D) 	Y 	   136.1  	181  	  1  	0.020 	0.080 SHP.NN.wus.glib
PSUT.UU (D) 	Y 	   144.0  	 51  	232  	0.020 	0.080 PSUT.UU.wus.glib

 (V)-velocity (D)-Displacement

Author: www-data
Date: 2013/12/22 01:16:28

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