This is a preliminary UCB moment tensor solution for the event located 5 km N of the Geysers, CA; 38.839N 122.810W; Z=3.6km; ML=3.9; (USGS/UCB Joint Notification System) on October 3, 2003 at 16:56:34 UTC. Other information about this event can be viewed at: http://earthquake.usgs.gov/recenteqsUS/Quakes/nc51131952.htm Reviewed by: Dreger UCB Seismological Laboratory Inversion method: complete waveform Stations used: BDM KCC ORV JCC Berkeley Moment Tensor Solution Best Fitting Double-Couple: Mo = 2.73E+22 Dyne-cm Mw = 4.26 Z = 5 (restrained) km Plane Strike Rake Dip NP1 27 -95 51 NP2 215 -84 39 Principal Axes: Axis Value Plunge Azimuth T 2.730 6 121 N 0.000 4 30 P -2.730 83 267 Event Date/Time: October 3, 2003 at 16:56:34 UTC Event ID: nc51131952 Moment Tensor: Scale = 10**22 Dyne-cm Component Value Mxx 0.698 Mxy -1.185 Mxz -0.123 Myy 1.962 Myz 0.572 Mzz -2.660 ####### ################### #################------## ##############-----------#### #############---------------##### ############-----------------###### ###########-------------------####### ##########---------------------######## #########----------------------######## #########----------------------########## ########--------- -----------########## ########--------- P ----------########### #######---------- ---------############ #######----------------------############ #####----------------------############ #####---------------------######### # ####-------------------########### T ####-----------------############ ###---------------############### ##-----------################ #-------################# ################### #######