========================================================================= This is a preliminary UCB moment tensor solution for the event located 15km W of Portola, CA (39.893 N 120.638W; Z=10km; ML=5.1; USGS/UCB JOint Notification System) on August 10, 2001 at 20:19:26UTC. A Mw5.2 and depth of 24 km were obtained from long-period wave recorded recorded by CMB, ORV, HOPS, POTR, and WDC. Best Fitting Double-Couple: Mo = 6.80E+23 Dyne-cm Mw = 5.19 Z = 24 km Plane Strike Rake Dip NP1 235 -9 83 NP2 326 -173 81 Principal Axes: Axis Value Plunge Azimuth T 6.800 1 281 N 0.000 79 18 P -6.800 11 190 Moment Tensor: Scale = 10**23 Dyne-cm Component Value Mxx -6.101 Mxy -2.378 Mxz 1.316 Myy 6.357 Myz 0.063 Mzz -0.256 ------- ------------------- #------------------------ #####------------------------ #########------------------------ ############---------------------## ##############----------------####### #################-----------########### #################-------############## T ##################---################## ##################--################### ##################-----################## ###############---------################# #############------------################ ##########---------------############## #######-------------------############# ####----------------------########### #-------------------------######### --------------------------####### -------------------------#### -------- -------------# ----- P ----------- ----- Lower Hemisphere Equiangle Projection =========================================================================