This is a preliminary UCB moment tensor solution for the event located 67 km W of Petrolia, CA; 40.403N 125.066W; Z=6.3km; ML=4.0; (USGS/UCB Joint Notification System) on October 24, 2006 at 14:26:43 UTC. Other information about this event can be viewed at: http://earthquake.usgs.gov/recenteqsus/Quakes/nc40190305.php Reviewed by: Hellweg UCB Seismological Laboratory Inversion method: complete waveform Stations used: GASB JCC WDC YBH Berkeley Moment Tensor Solution Best Fitting Double-Couple: Mo = 4.50E+22 Dyne-cm Mw = 4.37 Z = 5 Plane Strike Rake Dip NP1 99 172 85 NP2 190 5 82 Principal Axes: Axis Value Plunge Azimuth T 4.500 9 54 N 0.000 81 247 P -4.500 2 145 Event Date/Time: October 24, 2006 at 14:26:43 UTC Event ID: nc40190305 Moment Tensor: Scale = 10**22 Dyne-cm Component Value Mxx -1.478 Mxy 4.205 Mxz 0.548 Myy 1.369 Myz 0.480 Mzz 0.109 ------- ------------####### ---------------########## ----------------############# -----------------############# ------------------############# T # -------------------############# ## -------------------#################### -------------------#################### -------------------###################### #####--------------###################### ##############-----###################### ##################-------################ ##################----------------------- #################---------------------- #################---------------------- ###############---------------------- ##############--------------------- #############-------------------- ###########-------------- - #########-------------- P ######------------- ------- Lower Hemisphere Equiangle Projection