This is a preliminary UCB moment tensor solution for the event located 129 km W of Petrolia, CA; 40.55N 126.0W; Z=10km; (USGS National Earthquake Information Center (NEIC)) on October 17, 2006 at 20:53:18 (UTC). Other information about this event can be viewed at: http://earthquake.usgs.gov/recenteqsus/Quakes/ustybq.php Reviewed by: HELLWEG UCB Seismological Laboratory Inversion method: complete waveform Stations used: GASB JCC WDC KCT KHMB KMBP KMR O01C Berkeley Moment Tensor Solution Best Fitting Double-Couple: Mo = 2.03E+23 Dyne-cm Mw = 4.81 Z = 11 Plane Strike Rake Dip NP1 277 -166 85 NP2 186 -5 76 Principal Axes: Axis Value Plunge Azimuth T 2.030 6 51 N 0.000 75 296 P -2.030 13 142 Event Date/Time: October 17, 2006 at 20:53:18 (UTC) Event ID: ustybq Moment Tensor: Scale = 10**23 Dyne-cm Component Value Mxx -0.391 Mxy 1.914 Mxz 0.501 Myy 0.476 Myz -0.111 Mzz -0.085 -----## -----------######## -------------############ --------------############## ----------------############## T ----------------############### # -----------------#################### -----------------###################### -----------------###################### ------------------####################### ##############---######################## #################------------############ #################---------------------### #################------------------------ ################----------------------- ################----------------------- ###############---------------------- ##############--------------------- #############------------- ---- ###########------------- P -- ##########------------ #######------------ #------ Lower Hemisphere Equiangle Projection