This is a preliminary UCB moment tensor solution for the event located 7 km NNW of Pinnacles, CA; 36.589N 121.184W; Z=7.1km; ML=3.9; (USGS/UCB Joint Notification System) on August 31, 2004 at 9:12:27 UTC. Other information about this event can be viewed at: http://earthquake.usgs.gov/recenteqsUS/Quakes/nc40160639.htm Reviewed by: Dolenc UCB Seismological Laboratory Inversion method: complete waveform Stations used: BKS, CMB, MHC, and PKD Berkeley Moment Tensor Solution Best Fitting Double-Couple: Mo = 6.58E+21 Dyne-cm Mw = 3.85 Z = 11. km Plane Strike Rake Dip NP1 53 -11 85 NP2 144 -175 79 Principal Axes: Axis Value Plunge Azimuth T 6.632 4 99 N -0.108 77 209 P -6.524 12 8 Source Composition: Type Percent DC 96.7 CLVD 3.3 Iso 0.0 Event Date/Time: August 31, 2004 at 9:12:27 UTC Event ID: nc40160639 Moment Tensor: Scale = 10**21 Dyne-cm Component Value Mxx -5.977 Mxy -1.883 Mxz -1.341 Myy 6.310 Myz 0.328 Mzz -0.332 ----- ----------- P ----- -------------- -------- ###-------------------------- ######--------------------------- ########------------------------### ##########----------------------##### ############------------------######### #############---------------########### ###############------------############## ################---------################ #################------################## #################----################# #################----################# T #############--------################ ###########-----------################# #######----------------############## ###--------------------############ ------------------------######### ------------------------##### ------------------------# ------------------- -------