Hypocentral Location:

Event ID	71506865
Origin Time	2011/01/08 00:10:17
Latitude	37.2872
Longitude	-121.6582
Depth (TT)	9.6 km
Depth (MT; not authoritative)	8 km fixed

Magnitudes:

Md	4.15 (not authoritative)
Ml	4.28 (not authoritative)
Mw	4.1 (authoritative)

Principal Axes:

Scale	1.0E+22 Dyne-cm
Axis	Value	Plunge	Azimuth
T	1.775	5.292	281.328
N	0.004	78.161	37.551
P	-1.779	10.560	190.339

Source Composition:

Type	Percent
DC	100
CLVD	0
Iso	(null)

Moment Tensor (Aki & Richards Convention):

Mo	1.78e+22 Dyne-cm
Mxx	-1.596e+22 Dyne-cm
Mxy	-6.423e+21 Dyne-cm
Mxz	3.480e+21 Dyne-cm
Myy	1.636e+22 Dyne-cm
Myz	-1.018e+21 Dyne-cm
Mzz	-4.060e+20 Dyne-cm
Variance Reduction	87%
Version number	2
Solution time	2011/01/08 00:28:15 UTC

Best-fit Double Couple Solution

Plane	Strike	Rake	Dip
NP1	235	-11	86
NP2	326	-176	79

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