This is a preliminary UCB moment tensor solution for the event located 2 km NE of Lafayette; 37.901N 122.098W; Z=16.6km; ML=4.4; (USGS/UCB Joint Notification System) on March 2, 2007 at 4:40:00 UTC. Other information about this event can be viewed at: http://earthquake.usgs.gov/recenteqsus/Quakes/nc40194055.php Reviewed by: HELLWEG UCB Seismological Laboratory Inversion method: complete waveform Stations used: R04C CMT S04C WENL MHC BNLO MCCM CVS MNRC Berkeley Moment Tensor Solution Best Fitting Double-Couple: Mo = 2.77E+22 Dyne-cm Mw = 4.23 Z = 14 Plane Strike Rake Dip NP1 172 -179 89 NP2 82 -1 89 Principal Axes: Axis Value Plunge Azimuth T 2.770 0 307 N 0.000 89 217 P -2.770 1 37 Event Date/Time: March 2, 2007 at 4:40:00 UTC Event ID: nc40194055 Moment Tensor: Scale = 10**22 Dyne-cm Component Value Mxx -0.762 Mxy -2.662 Mxz -0.055 Myy 0.763 Myz -0.041 Mzz -0.002 #------ #######------------ ##########------------- P ############------------- - T #############------------------ #############------------------- #################-------------------- ##################--------------------- ###################-------------------- ####################--------------------- ####################---------------###### ####################--################### #########------------#################### ---------------------#################### --------------------################### --------------------################### --------------------################# -------------------################ ------------------############### ----------------############# ---------------########## ------------####### ------# Lower Hemisphere Equiangle Projection