Hypocentral Location:

Event ID	332712
Origin Time	1993/01/18 23:27:11
Latitude	38.8425
Longitude	-122.7780
Depth (TT)	2.5 km
Depth (MT; not authoritative)	3.5 km fixed

Magnitudes:

Ma	3.58 (not authoritative)
Md	3.76 (not authoritative)
Mw	3.92 (authoritative)

Principal Axes:

Scale	1.0E+21 Dyne-cm
Axis	Value	Plunge	Azimuth
T	10.555	11.954	113.706
N	-2.269	6.699	205.131
P	-8.287	76.248	323.812

Source Composition:

Type	Percent
DC	57
CLVD	43
Iso	(null)

Moment Tensor (Aki & Richards Convention):

Mo	9.42e+21 Dyne-cm
Mxx	-5.061e+20 Dyne-cm
Mxy	-4.356e+21 Dyne-cm
Mxz	-2.166e+21 Dyne-cm
Myy	7.903e+21 Dyne-cm
Myz	3.200e+21 Dyne-cm
Mzz	-7.396e+21 Dyne-cm
Variance Reduction	71%
Version number	1
Solution time	2011/08/02 16:52:08 UTC

Best-fit Double Couple Solution

Plane	Strike	Rake	Dip
NP1	29	-82	57
NP2	195	-102	34

Waveform data (solid line) and synthetic data (dashed line) from the moment tensor inversion: