This is a preliminary UCB moment tensor solution for the event located 7 km NW of Parkfield, California; 35.944N 120.492W; Z=10.4km; ML=4.2; (USGS/UCB Joint Notification System) on November 29, 2004 at 01:54:14 (UTC). Other information about this event can be viewed at: http://earthquake.usgs.gov/recenteqsUS/Quakes/nc51153873.htm Reviewed by: Dreger UCB Seismological Laboratory Inversion method: complete waveform Stations used: KCC SAO ISA SBC Berkeley Moment Tensor Solution Best Fitting Double-Couple: Mo = 2.30E+22 Dyne-cm Mw = 4.21 Z = 8 km Plane Strike Rake Dip NP1 52 -17 85 NP2 143 -175 73 Principal Axes: Axis Value Plunge Azimuth T 2.300 8 98 N 0.000 72 216 P -2.300 15 6 Event Date/Time: November 29, 2004 at 01:54:14 (UTC) Event ID: nc51153873 Moment Tensor: Scale = 10**22 Dyne-cm Component Value Mxx -2.066 Mxy -0.550 Mxz -0.635 Myy 2.178 Myz 0.270 Mzz -0.112 ------- ---------- ------ ------------- P --------- ##------------- ----------- #####---------------------------- #######-------------------------### ########-----------------------###### ##########--------------------######### ###########-----------------########### #############--------------############## ##############-----------################ ################------############### # #################---################# T # ##################################### # ##############-----#################### ############---------################## ########-------------################ ####------------------############# ------------------------######### ------------------------##### ------------------------- ------------------- -------