Hypocentral Location:

Event ID	71271995
Origin Time	2009/09/06 09:47:15
Latitude	36.8515
Longitude	-121.4115
Depth (TT)	9.3 km
Depth (MT; not authoritative)	8 km fixed

Magnitudes:

Md	4.05 (not authoritative)
Ml	4.17 (not authoritative)
Mw	3.87 (authoritative)

Principal Axes:

Scale	1.0E+21 Dyne-cm
Axis	Value	Plunge	Azimuth
T	8.076	6.433	125.049
N	-0.132	81.957	267.983
P	-7.943	4.807	34.506

Source Composition:

Type	Percent
DC	97
CLVD	3
Iso	(null)

Moment Tensor (Aki & Richards Convention):

Mo	8.01e+21 Dyne-cm
Mxx	-2.726e+21 Dyne-cm
Mxy	-7.431e+21 Dyne-cm
Mxz	-1.062e+21 Dyne-cm
Myy	2.810e+21 Dyne-cm
Myz	3.786e+20 Dyne-cm
Mzz	-8.410e+19 Dyne-cm
Variance Reduction	84%
Version number	2
Solution time	2009/09/06 10:30:11 UTC

Best-fit Double Couple Solution

Plane	Strike	Rake	Dip
NP1	260	8	89
NP2	170	179	82

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