This is a preliminary UCB moment tensor solution for the event located 9 km NW of Parkfield, CA; 35.952N 120.506W; Z=9.7km; ML=3.5; (USGS/UCB Joint Notification System) on February 8, 2005 at 22:00:48 UTC. Other information about this event can be viewed at: http://earthquake.usgs.gov/recenteqsUS/Quakes/nc51156530.htm Reviewed by: Dolenc UCB Seismological Laboratory Inversion method: complete waveform Stations used: SAO and MHC Berkeley Moment Tensor Solution Best Fitting Double-Couple: Mo = 2.52E+21 Dyne-cm Mw = 3.57 Z = 14. km Plane Strike Rake Dip NP1 57 6 89 NP2 327 179 84 Principal Axes: Axis Value Plunge Azimuth T 2.552 5 282 N -0.059 84 64 P -2.493 4 192 Source Composition: Type Percent DC 95.3 CLVD 4.7 Iso 0.0 Event Date/Time: February 8, 2005 at 22:00:48 UTC Event ID: nc51156530 Moment Tensor: Scale = 10**21 Dyne-cm Component Value Mxx -2.255 Mxy -1.044 Mxz 0.200 Myy 2.307 Myz -0.174 Mzz -0.052 ------- ------------------- ##----------------------- ######----------------------- #########------------------------ ###########------------------------ ##############-------------------#### ################---------------######## ###############------------########## T ################--------############## #################-----################ ###################-----################# #################-------################# ###############----------################ ###########--------------############## ########------------------############# ####----------------------########### --------------------------######### --------------------------####### ------------------------##### ------- -------------## ---- P ------------ ------