This is a preliminary UCB moment tensor solution for the event located 11 km NW of Parkfield, CA; 35.9725N 120.5223W; Z=8.44km; ML=4.2; (USGS/UCB Joint Notification System) on November 12, 2002 at 16:48:25 (UTC). Other information about this event can be viewed at: http://earthquake.usgs.gov/recenteqsUS/Quakes/nc40138111.htm Reviewed by: Dreger UCB Seismological Laboratory Inversion method: complete waveform Stations used: CMB KCC MHC SAO Berkeley Moment Tensor Solution Best Fitting Double-Couple: Mo = 1.80E+22 Dyne-cm Mw = 4.14 Z = 11 km Plane Strike Rake Dip NP1 141 -173 87 NP2 51 -3 83 Principal Axes: Axis Value Plunge Azimuth T 1.800 3 276 N 0.000 82 164 P -1.800 7 6 Event Date/Time: November 12, 2002 at 16:48:25 (UTC) Event ID: nc40138111 Moment Tensor: Scale = 10**22 Dyne-cm Component Value Mxx -1.736 Mxy -0.360 Mxz -0.210 Myy 1.759 Myz -0.111 Mzz -0.023 ---- ---------- P ------ ------------- --------- ##--------------------------- ######--------------------------# ########------------------------### ##########---------------------###### #############-----------------######### ##############--------------########### ###############----------############## T ################-------################ ##################---################## ######################################### ##################-----################## ###############--------################ #############------------############## #########----------------############ #####---------------------######### #--------------------------###### --------------------------### ------------------------- ------------------- -------