Hypocentral Location:

Event ID	486680
Origin Time	1996/12/04 21:21:15
Latitude	38.7915
Longitude	-122.7573
Depth (TT)	2.0 km
Depth (MT; not authoritative)	3.5 km fixed

Magnitudes:

Ma	3.91 (not authoritative)
Md	4.11 (not authoritative)
Mw	4.34 (authoritative)

Principal Axes:

Scale	1.0E+22 Dyne-cm
Axis	Value	Plunge	Azimuth
T	3.912	3.108	107.472
N	0.103	56.849	12.704
P	-4.014	32.967	199.490

Source Composition:

Type	Percent
DC	95
CLVD	5
Iso	(null)

Moment Tensor (Aki & Richards Convention):

Mo	3.96e+22 Dyne-cm
Mxx	-2.130e+22 Dyne-cm
Mxy	-1.999e+22 Dyne-cm
Mxz	1.710e+22 Dyne-cm
Myy	3.235e+22 Dyne-cm
Myz	8.238e+21 Dyne-cm
Mzz	-1.105e+22 Dyne-cm
Variance Reduction	80%
Version number	153
Solution time	2011/07/19 23:51:22 UTC

Best-fit Double Couple Solution

Plane	Strike	Rake	Dip
NP1	338	-153	70
NP2	238	-22	65

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