Hypocentral Location:

Event ID	71847715
Origin Time	2012/09/25 15:15:10
Latitude	39.1678
Longitude	-123.1658
Depth (TT)	10.8 km
Depth (MT; not authoritative)	8 km fixed

Magnitudes:

Md	3.98 (not authoritative)
Ml	3.96 (not authoritative)
Mw	4.51 (authoritative)

Principal Axes:

Scale	1.0E+22 Dyne-cm
Axis	Value	Plunge	Azimuth
T	7.037	16.396	285.806
N	0.651	69.456	67.537
P	-7.688	12.035	192.209

Source Composition:

Type	Percent
DC	83
CLVD	17
Iso	(null)

Moment Tensor (Aki & Richards Convention):

Mo	7.36e+22 Dyne-cm
Mxx	-6.533e+22 Dyne-cm
Mxy	-3.189e+22 Dyne-cm
Mxz	2.133e+22 Dyne-cm
Myy	5.735e+22 Dyne-cm
Myz	-1.304e+22 Dyne-cm
Mzz	7.973e+21 Dyne-cm
Variance Reduction	86%
Version number	2
Solution time	2012/09/25 15:48:13 UTC

Best-fit Double Couple Solution

Plane	Strike	Rake	Dip
NP1	60	20	87
NP2	328	177	70

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