This is a preliminary UCB moment tensor solution for the event located 50 km W of Petrolia; 40.642N 124.870W; Z=0.04km; ML=5.0; (USGS/UCB Joint Notification System) on February 26, 2007 at 12:19:54 UTC. Other information about this event can be viewed at: http://earthquake.usgs.gov/recenteqsus/Quakes/nc40193932.php Reviewed by: HELLWEG UCB Seismological Laboratory Inversion method: complete waveform Stations used: K01A KRMB YBH M03C JCC N02C WDC KMPB KCT GASB O01C P01C Berkeley Moment Tensor Solution Best Fitting Double-Couple: Mo = 1.48E+24 Dyne-cm Mw = 5.38 Z = 8 Plane Strike Rake Dip NP1 60 -4 89 NP2 150 -179 86 Principal Axes: Axis Value Plunge Azimuth T 1.480 2 105 N 0.000 86 226 P -1.480 4 15 Event Date/Time: February 26, 2007 at 12:19:54 UTC Event ID: nc40193932 Moment Tensor: Scale = 10**24 Dyne-cm Component Value Mxx -1.276 Mxy -0.740 Mxz -0.102 Myy 1.279 Myz 0.029 Mzz -0.004 ------- ------------- P --- ###------------- ------ ######----------------------- #########------------------------ ##########------------------------- ############-----------------------## ##############-------------------###### ###############--------------########## #################----------############## ##################------################# ###################--#################### ##################---#################### ###############-------################ ##########------------############### T #######----------------############## ###--------------------############## -----------------------############ -----------------------########## -----------------------###### ----------------------### ------------------- ------- Lower Hemisphere Equiangle Projection