Special Reports

Monent Tensor Solution - UC Berkeley

Big Bear City M 5.4 earthquake, February 22, 2003

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This is a preliminary UCB moment tensor solution for the event located
5 km N of Big Bear City, CA; 34.310N 116.848W; Z=1.2km;  ML=5.4;
(Southern California Seismic Network) on February 22, 2003 at 12:19:10
(UTC). 

Reviewed by:
Dreger
UCB Seismological Laboratory
Inversion method: complete waveform Stations used: BDM KCC MHC PAS DGR Berkeley Moment Tensor Solution Best Fitting Double-Couple: Mo = 3.20E+23 Dyne-cm Mw = 4.97 Z = 5. km Plane Strike Rake Dip NP1 40 -20 75 NP2 135 -164 71 Principal Axes: Axis Value Plunge Azimuth T 3.200 3 88 N 0.000 65 185 P -3.200 25 357 Event Date/Time: February 22, 2003 at 12:19:10 (UTC) Event ID: ci13935988 Moment Tensor: Scale = 10**23 Dyne-cm Component Value Mxx -2.634 Mxy 0.235 Mxz -1.205 Myy 3.182 Myz 0.226 Mzz -0.547 ------- ------------------- ---------- ------------ ------------ P ------------## ###----------- ------------#### ####-------------------------###### ######-----------------------######## ########---------------------########## #########-------------------########### ############----------------############# #############-------------############# ##############-----------############## T ################-------################ ##################----################### ####################################### #################----################## ##############--------############### ###########-------------########### ########-------------------###### ###-------------------------- ------------------------- ------------------- ------- . For more information on UC Berkeley focal mechanisms.
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