This is a preliminary UCB moment tensor solution for the event located 13 km WNW of Punta Gorda, CA (40.305N 124.501W; Z=7.5km; ML=3.9; USGS/UCB Joint Notification System) on May 4, 2002 at 12:17:00 (UTC). Other information about this event can be viewed at: http://ncedc.org/recenteqs/Quakes/nc51118162.html Reviewed by: Dreger UCB Seismological Laboratory Inversion method: complete waveform Stations used: JCC YBH WDC ORV Berkeley Moment Tensor Solution Best Fitting Double-Couple: Mo = 9.85E+21 Dyne-cm Mw = 3.96 Z = 5 km Plane Strike Rake Dip NP1 160 44 73 NP2 54 157 48 Principal Axes: Axis Value Plunge Azimuth T 9.850 43 26 N 0.000 43 177 P -9.850 15 282 Event Date/Time: May 4, 2002 at 12:17:00 (UTC) Event ID: nc51118162 Moment Tensor: Scale = 10**21 Dyne-cm Component Value Mxx 3.908 Mxy 3.961 Mxz 3.887 Myy -7.734 Myz 4.622 Mzz 3.826 ####### --################# -----#################### -------###################### ---------######################## -----------########## ##########- ------------########## T ##########-- -------------########## ##########--- - ----------#####################---- -- P ----------####################------ -- -----------###################------ ----------------#################-------- -----------------###############--------- ------------------#############---------- ------------------##########----------- ------------------########------------- ------------------####--------------- -----------------#----------------- ###------#########--------------- ##################----------- #################-------- ################--- #######