This is a preliminary UCB moment tensor solution for the event located 14 km S of Parkfield, CA; 35.775N 120.445W; Z=1.1km; ML=6.0; (USGS/UCB Joint Notification System) on September 28, 2004 at 17:15:24 UTC. Other information about this event can be viewed at: http://earthquake.usgs.gov/recenteqsUS/Quakes/nc51147892.htm Reviewed by: Dolenc UCB Seismological Laboratory Inversion method: complete waveform Stations used: KCC, MHC, PACP, and TIN Berkeley Moment Tensor Solution Best Fitting Double-Couple: Mo = 9.82E+24 Dyne-cm Mw = 5.96 Z = 8. km Plane Strike Rake Dip NP1 57 -7 85 NP2 147 -175 83 Principal Axes: Axis Value Plunge Azimuth T 9.853 1 102 N -0.057 82 198 P -9.796 8 12 Source Composition: Type Percent DC 98.8 CLVD 1.2 Iso 0.0 Event Date/Time: September 28, 2004 at 17:15:24 UTC Event ID: nc51147892 Moment Tensor: Scale = 10**24 Dyne-cm Component Value Mxx -8.776 Mxy -3.901 Mxz -1.395 Myy 9.034 Myz -0.131 Mzz -0.258 ------ ------------ P ---- ##------------- ------- ####------------------------- #######-------------------------- #########-------------------------# ###########----------------------#### #############-------------------####### ##############---------------########## ################------------############# #################--------################ ##################-----################## ###################--################## #################----################## T #############---------################ ##########-------------################ ######-----------------############## #----------------------############ ------------------------######### -----------------------###### -----------------------## ------------------- -------