This is a preliminary UCB moment tensor solution for the event located 3 km ESE of Berkeley; 37.865N 122.241W; Z=11.4km; ML=3.4; (USGS/UCB Joint Notification System) on February 23, 2007 at 23:46:15 UTC. Other information about this event can be viewed at: http://earthquake.usgs.gov/recenteqsus/Quakes/nc40193843.php Reviewed by: HELLWEG UCB Seismological Laboratory Inversion method: complete waveform Stations used: BDM CVS Berkeley Moment Tensor Solution Best Fitting Double-Couple: Mo = 1.15E+21 Dyne-cm Mw = 3.31 Z = 11 Plane Strike Rake Dip NP1 154 -176 88 NP2 64 -2 86 Principal Axes: Axis Value Plunge Azimuth T 11.500 1 289 N 0.000 86 181 P -11.500 4 19 Event Date/Time: February 23, 2007 at 23:46:15 UTC Event ID: nc40193843 Moment Tensor: Scale = 10**20 Dyne-cm Component Value Mxx -9.024 Mxy -7.037 Mxz -0.711 Myy 9.080 Myz -0.544 Mzz -0.056 ------- -------------- P -- ####------------- ----- #######---------------------- ##########----------------------- ############----------------------- #############----------------------- T #############--------------------#### ##############----------------####### ##################------------########### ###################-------############### ####################---################## ###################--#################### ###############-------################### ##########------------################# #####------------------################ -----------------------############## -----------------------############ -----------------------########## ---------------------######## --------------------##### ------------------# ------- Lower Hemisphere Equiangle Projection