This is a preliminary UCB moment tensor solution for the event located 100 km W of Petrolia, CA; 40.43N 125.46W; Z=2.5km; ML=4.5; (USGS/UCB Joint Notification System) on December 23, 2005 at 21:38:31 UTC. Other information about this event can be viewed at: http://earthquake.usgs.gov/recenteqsUS/Quakes/nc51167135.htm Reviewed by: HELLWEG UCB Seismological Laboratory Inversion method: complete waveform Stations used: HOPS HUMO JCC WDC YBH Berkeley Moment Tensor Solution Best Fitting Double-Couple: Mo = 1.05E+23 Dyne-cm Mw = 4.65 Z = 5 km Plane Strike Rake Dip NP1 6 3 88 NP2 276 178 87 Principal Axes: Axis Value Plunge Azimuth T 1.050 4 231 N 0.000 86 40 P -1.050 1 141 Event Date/Time: December 23, 2005 at 21:38:31 UTC Event ID: nc51167135 Moment Tensor: Scale = 10**23 Dyne-cm Component Value Mxx -0.218 Mxy 1.025 Mxz -0.031 Myy 0.214 Myz -0.058 Mzz 0.004 ------# ------------####### --------------########### ----------------############# ------------------############### -------------------################ --------------------################# ---------------------################## ---------------------################## ---------------------#################### #######--------------#################### #####################------############## #####################-------------------# #####################-------------------- ###################-------------------- ###################-------------------- ##################------------------- # #############------------------ T ############------------------ ############------------- ###########------------- P ########----------- #------