This is a preliminary UCB moment tensor solution for the event located 4 km ESE of Berkeley, CA; 37.860N 122.237W; Z=9km; ML=3.7; (USGS/UCB Joint Notification System) on December 21, 2006 at 03:12:28 UTC. Other information about this event can be viewed at: http://earthquake.usgs.gov/recenteqsus/Quakes/nc51177042.php Reviewed by: DREGER UCB Seismological Laboratory Inversion method: complete waveform Stations used: MCCM CVS FARB MHC WENL Berkeley Moment Tensor Solution Best Fitting Double-Couple: Mo = 2.85E+21 Dyne-cm Mw = 3.57 Z = 8 Plane Strike Rake Dip NP1 49 -14 80 NP2 141 -170 76 Principal Axes: Axis Value Plunge Azimuth T 2.850 3 95 N 0.000 73 195 P -2.850 17 4 Event Date/Time: December 21, 2006 at 03:12:28 UTC Event ID: nc51177042 Moment Tensor: Scale = 10**21 Dyne-cm Component Value Mxx -2.572 Mxy -0.453 Mxz -0.803 Myy 2.804 Myz 0.088 Mzz -0.232 ------- --------- ------- ------------ P ---------- ##------------ ------------ #####--------------------------## #######------------------------#### ########-----------------------###### ##########--------------------######### ############----------------########### ##############--------------############# ###############-----------############### ################--------############### ##################----################# T ###################-################### ################----################### ##############--------################# ##########-------------############## #######-----------------########### ##-----------------------######## -------------------------#### ------------------------- ------------------- ------- Lower Hemisphere Equiangle Projection