Hypocentral Location:

Event ID	71324305
Origin Time	2009/12/20 12:26:26
Latitude	38.7883
Longitude	-122.7683
Depth (TT)	3.7 km
Depth (MT; not authoritative)	5 km fixed

Magnitudes:

Md	3.54 (not authoritative)
Ml	3.62 (not authoritative)
Mw	3.77 (authoritative)

Principal Axes:

Scale	1.0E+21 Dyne-cm
Axis	Value	Plunge	Azimuth
T	5.745	26.597	142.953
N	-0.070	55.470	279.647
P	-5.675	20.344	42.254

Source Composition:

Type	Percent
DC	98
CLVD	2
Iso	(null)

Moment Tensor (Aki & Richards Convention):

Mo	5.71e+21 Dyne-cm
Mxx	1.922e+20 Dyne-cm
Mxy	-4.688e+21 Dyne-cm
Mxz	-3.210e+21 Dyne-cm
Myy	-6.104e+20 Dyne-cm
Myz	1.740e+20 Dyne-cm
Mzz	4.182e+20 Dyne-cm
Variance Reduction	78%
Version number	4
Solution time	2009/12/20 18:46:04 UTC

Best-fit Double Couple Solution

Plane	Strike	Rake	Dip
NP1	274	34	86
NP2	181	175	56

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