This is a preliminary UCB moment tensor solution for the event 22 km
SSE of Hollister, CA (36.6758 N, 121.2998 W; Z=6.4km; ML=4.1;
USGS/UCB Joint Notification System) on March 23, 1999 at 18:36:40UTC.
A Mw 4.1 and depth of 8 km were obtained from long-period waves
by BKS, MHC and PKD.
Best Fitting Double-Couple:
Mo = 1.72E+22 Dyne-cm
Mw = 4.12
Z = 8 km
Plane Strike Rake Dip
NP1 310 139 84
NP2 45 8 49
Principal Axes:
Axis Value Plunge Azimuth
T 1.720 32 259
N 0.000 49 123
P -1.720 23 5
Best regards,
Douglas Dreger
Hrvoje Tkalcic
Berkeley Seismological Laboratory
Berkeley Moment Tensor Solution
Event Date/Time: prel
Moment Tensor: Scale = 10**22 Dyne-cm
Component Value
Mxx -1.409
Mxy 0.109
Mxz -0.758
Myy 1.174
Myz -0.813
Mzz 0.235
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------------ ----------
-------------- P ------------
#--------------- ------------##
#####---------------------------###
#########------------------------####
############----------------------#####
###############------------------######
##################----------------#######
####################-------------########
###### ##############---------#########
###### T ################------##########
###### ##################---###########
###########################-###########
#########################-----#########
######################---------######
##################-------------####
##############------------------#
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Lower Hemisphere Equiangle Projection