This is a preliminary UCB moment tensor solution for the event located 7 km SSW of Parkfield, CA; 35.834N 120.450W; Z=2.3km; ML=3.8; (USGS/UCB Joint Notification System) on September 6, 2002 at 7:28:22 (UTC). Other information about this event can be viewed at: http://earthquake.usgs.gov/recenteqsUS/Quakes/nc51121551.htm Reviewed by: Dreger UCB Seismological Laboratory Inversion method: complete waveform Stations used: CMB SAO KCC Berkeley Moment Tensor Solution Best Fitting Double-Couple: Mo = 9.79E+21 Dyne-cm Mw = 3.96 Z = 14 km Plane Strike Rake Dip NP1 321 175 88 NP2 51 2 85 Principal Axes: Axis Value Plunge Azimuth T 9.790 5 276 N 0.000 85 119 P -9.790 2 6 Event Date/Time: September 6, 2002 at 7:28:22 (UTC) Event ID: nc51121551 Moment Tensor: Scale = 10**21 Dyne-cm Component Value Mxx -9.557 Mxy -2.056 Mxz -0.271 Myy 9.498 Myz -0.876 Mzz 0.060 ---- P ---------- ------ ------------------------- ###-------------------------- ######--------------------------- #########-----------------------### ###########--------------------###### ##############----------------######### ################------------########### ###############---------############## T #################-----################ ##################-################### ####################---################## ##################------################# ##############-----------############## ############--------------############# ########------------------########### ####-----------------------######## ---------------------------###### ---------------------------## ------------------------- ------------------- -------