This is a preliminary UCB moment tensor solution for the event located 4 km N of Dublin, CA; 37.740N 121.937W; Z=16.5km; ML=4.2; (USGS/UCB Joint Notification System) on February 2, 2003 at 18:22:58 (UTC). Other information about this event can be viewed at: http://earthquake.usgs.gov/recenteqsUS/Quakes/nc51125525.htm Reviewed by: Dreger UCB Seismological Laboratory Inversion method: complete waveform Stations used: SAO ORV KCC Berkeley Moment Tensor Solution Best Fitting Double-Couple: Mo = 1.36E+22 Dyne-cm Mw = 4.06 Z = 14 km Plane Strike Rake Dip NP1 67 -19 88 NP2 158 -178 71 Principal Axes: Axis Value Plunge Azimuth T 13.600 12 114 N 0.000 71 242 P -13.600 15 21 Event Date/Time: February 2, 2003 at 18:22:58 (UTC) Event ID: nc51125525 Moment Tensor: Scale = 10**21 Dyne-cm Component Value Mxx -8.886 Mxy -9.143 Mxz -4.243 Myy 9.178 Myz 1.311 Mzz -0.292 ------- ##------------ -- #####------------ P ----- #######------------ ------- #########------------------------ ##########------------------------- ###########-------------------------- #############------------------------## #############--------------------###### ###############---------------########### ###############-----------############### ################------################### ######################################### #############----######################## #######----------################# ## ##----------------################ T ## ------------------############### # ------------------################# -------------------############## ------------------########### ------------------####### ----------------### -------