This is a preliminary UCB moment tensor solution for the event located 16 km SE of Willits, CA; 39.310N 123.217W; Z=8.7km; ML=3.7; (USGS/UCB Joint Notification System) on September 26, 2006 at 20:56:13 UTC. Other information about this event can be viewed at: http://earthquake.usgs.gov/recenteqsus/Quakes/nc40189407.php Reviewed by: DREGER UCB Seismological Laboratory Inversion method: complete waveform Stations used: BKS CVS JCC MNRC ORV WDC 001C 002C Berkeley Moment Tensor Solution Best Fitting Double-Couple: Mo = 9.52E+21 Dyne-cm Mw = 3.92 Z = 8 Plane Strike Rake Dip NP1 239 -29 82 NP2 333 -171 61 Principal Axes: Axis Value Plunge Azimuth T 9.520 14 289 N 0.000 60 45 P -9.520 26 192 Event Date/Time: September 26, 2006 at 20:56:13 UTC Event ID: nc40189407 Moment Tensor: Scale = 10**21 Dyne-cm Component Value Mxx -6.393 Mxy -4.323 Mxz 4.420 Myy 7.656 Myz -1.366 Mzz -1.263 ------- ------------------- #######------------------ ###########------------------ ###############------------------ ##################----------------- #####################-----------##### ## ##################------########## ## T ###################--############# ### #################---############### ####################-------############## #################-----------############# ##############---------------############ ############-----------------############ ########---------------------########## ######-----------------------########## ###-------------------------######### ---------------------------######## ------------ ------------###### ---------- P -----------##### -------- -----------### ------------------- ------- Lower Hemisphere Equiangle Projection