This is a preliminary UCB moment tensor solution for the event located 5 km N of Dublin, CA; 37.748N 121.942W; Z=16.7km; ML=4.0; (USGS/UCB Joint Notification System) on February 2, 2003 at 18:47:39 (UTC). Other information about this event can be viewed at: http://earthquake.usgs.gov/recenteqsUS/Quakes/nc51125530.htm Reviewed by: Dreger UCB Seismological Laboratory Inversion method: complete waveform Stations used: KCC ORV SAO Berkeley Moment Tensor Solution Best Fitting Double-Couple: Mo = 1.36E+22 Dyne-cm Mw = 4.06 Z = 11 km Plane Strike Rake Dip NP1 68 -34 87 NP2 160 -176 56 Principal Axes: Axis Value Plunge Azimuth T 13.600 21 119 N 0.000 56 243 P -13.600 26 18 Event Date/Time: February 2, 2003 at 18:47:39 (UTC) Event ID: nc51125530 Moment Tensor: Scale = 10**21 Dyne-cm Component Value Mxx -7.127 Mxy -8.333 Mxz -7.251 Myy 8.006 Myz 2.261 Mzz -0.880 ------- ##----------------- ####------------ ------ ######------------ P -------- #######------------- ---------- ########--------------------------- #########---------------------------- ##########----------------------------# ##########------------------------##### ############-------------------########## ############---------------############## ############----------################### #############-----####################### #############-########################### #######------################### #### ##------------################## T #### --------------################# ### ---------------#################### ---------------################## ---------------############## ---------------########## ---------------#### -------