Hypocentral Location:

Event ID	71812891
Origin Time	2012/07/08 12:05:49
Latitude	39.4795
Longitude	-123.8042
Depth (TT)	7.5 km
Depth (MT; not authoritative)	8 km fixed

Magnitudes:

Md	3.96 (not authoritative)
Ml	4.14 (not authoritative)
Mw	4.42 (authoritative)

Principal Axes:

Scale	1.0E+22 Dyne-cm
Axis	Value	Plunge	Azimuth
T	5.721	24.707	94.393
N	-0.685	39.691	341.944
P	-5.036	40.247	207.313

Source Composition:

Type	Percent
DC	76
CLVD	24
Iso	(null)

Moment Tensor (Aki & Richards Convention):

Mo	5.38e+22 Dyne-cm
Mxx	-2.655e+22 Dyne-cm
Mxy	-1.437e+22 Dyne-cm
Mxz	1.720e+22 Dyne-cm
Myy	4.037e+22 Dyne-cm
Myz	3.410e+22 Dyne-cm
Mzz	-1.382e+22 Dyne-cm
Variance Reduction	73%
Version number	4
Solution time	2012/07/10 00:49:07 UTC

Best-fit Double Couple Solution

Plane	Strike	Rake	Dip
NP1	334	-130	81
NP2	233	-14	41

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