Hypocentral Location:

Event ID	71325090
Origin Time	2009/12/22 23:40:44
Latitude	39.7773
Longitude	-123.3382
Depth (TT)	8.5 km
Depth (MT; not authoritative)	11 km fixed

Magnitudes:

Md	3.82 (not authoritative)
Ml	3.65 (not authoritative)
Mw	3.96 (authoritative)

Principal Axes:

Scale	1.0E+21 Dyne-cm
Axis	Value	Plunge	Azimuth
T	11.719	37.122	244.353
N	-1.625	37.061	119.489
P	-10.094	31.472	1.954

Source Composition:

Type	Percent
DC	72
CLVD	28
Iso	(null)

Moment Tensor (Aki & Richards Convention):

Mo	1.09e+22 Dyne-cm
Mxx	-6.189e+21 Dyne-cm
Mxy	3.100e+21 Dyne-cm
Mxz	-6.548e+21 Dyne-cm
Myy	5.262e+21 Dyne-cm
Myz	-5.917e+21 Dyne-cm
Mzz	9.268e+20 Dyne-cm
Variance Reduction	75%
Version number	3
Solution time	2009/12/23 01:32:03 UTC

Best-fit Double Couple Solution

Plane	Strike	Rake	Dip
NP1	302	127	87
NP2	36	5	37

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