Hypocentral Location:

Event ID	51214595
Origin Time	2009/01/04 17:27:10
Latitude	38.7823
Longitude	-122.7725
Depth (TT)	3.8 km
Depth (MT; not authoritative)	5 km fixed

Magnitudes:

Md	3.98 (not authoritative)
Ml	4.14 (not authoritative)
Mw	4.27 (authoritative)

Principal Axes:

Scale	1.0E+22 Dyne-cm
Axis	Value	Plunge	Azimuth
T	3.403	12.354	128.244
N	-0.397	73.606	266.356
P	-3.006	10.608	35.893

Source Composition:

Type	Percent
DC	77
CLVD	23
Iso	(null)

Moment Tensor (Aki & Richards Convention):

Mo	3.20e+22 Dyne-cm
Mxx	-6.616e+21 Dyne-cm
Mxy	-2.960e+22 Dyne-cm
Mxz	-8.739e+21 Dyne-cm
Myy	9.732e+21 Dyne-cm
Myz	3.470e+21 Dyne-cm
Mzz	-3.115e+21 Dyne-cm
Variance Reduction	78%
Version number	5
Solution time	2012/08/13 05:15:28 UTC

Best-fit Double Couple Solution

Plane	Strike	Rake	Dip
NP1	262	16	89
NP2	172	179	74

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