This is a preliminary UCB moment tensor solution for the event located 5 km SW of Orinda, CA; 37.8455N 122.222W; Z=12.45km; ML=4.13; (USGS/UCB Joint Notification System) on September 5, 2003 at 01:39 UTC. Other information about this event can be viewed at: http://earthquake.usgs.gov/recenteqsUS/Quakes/nc40146204.htm Reviewed by: Templeton UCB Seismological Laboratory Inversion method: complete waveform Stations used: JRSC MHC SAO HOPS CMB Berkeley Moment Tensor Solution Best Fitting Double-Couple: Mo = 1.15E+22 Dyne-cm Mw = 4.01 Z = 14 km Plane Strike Rake Dip NP1 51 -13 89 NP2 141 -179 77 Principal Axes: Axis Value Plunge Azimuth T 1.150 8 97 N 0.000 77 227 P -1.150 10 5 Event Date/Time: September 5, 2003 at 01:39 UTC Event ID: nc40146204 Moment Tensor: Scale = 10**22 Dyne-cm Component Value Mxx -1.090 Mxy -0.237 Mxz -0.213 Myy 1.099 Myz 0.148 Mzz -0.009 ---- ---------- P ------ ------------- --------- ##--------------------------- #####---------------------------# #######------------------------#### #########---------------------####### ###########------------------########## ############---------------############ ##############-----------################ ###############--------################## #################----################# ##################-################### T ################----################## #############-------################### ###########-----------################# #######----------------############## ####--------------------########### #------------------------######## -------------------------#### ------------------------- ------------------- -------