Hypocentral Location:

Event ID	375872
Origin Time	1993/08/23 15:03:27
Latitude	38.8120
Longitude	-122.8323
Depth (TT)	1.6 km
Depth (MT; not authoritative)	1.5 km fixed

Magnitudes:

Ma	3.61 (not authoritative)
Md	3.8 (not authoritative)
Mw	3.99 (authoritative)

Principal Axes:

Scale	1.0E+22 Dyne-cm
Axis	Value	Plunge	Azimuth
T	1.290	17.998	260.659
N	-0.214	11.036	167.026
P	-1.076	68.686	47.034

Source Composition:

Type	Percent
DC	67
CLVD	33
Iso	(null)

Moment Tensor (Aki & Richards Convention):

Mo	1.18e+22 Dyne-cm
Mxx	-2.308e+21 Dyne-cm
Mxy	1.610e+21 Dyne-cm
Mxz	-2.707e+21 Dyne-cm
Myy	1.049e+22 Dyne-cm
Myz	-6.495e+21 Dyne-cm
Mzz	-8.184e+21 Dyne-cm
Variance Reduction	72%
Version number	4
Solution time	2012/08/13 04:02:35 UTC

Best-fit Double Couple Solution

Plane	Strike	Rake	Dip
NP1	162	-102	64
NP2	8	-67	29

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