Hypocentral Location:

Event ID	51220793
Origin Time	2009/04/30 22:50:55
Latitude	37.2535
Longitude	-121.6358
Depth (TT)	6.0 km
Depth (MT; not authoritative)	8 km fixed

Magnitudes:

Md	3.64 (not authoritative)
Ml	3.77 (not authoritative)
Mw	3.51 (authoritative)

Principal Axes:

Scale	1.0E+21 Dyne-cm
Axis	Value	Plunge	Azimuth
T	2.419	2.513	280.982
N	-0.213	87.069	70.003
P	-2.206	1.507	190.916

Source Composition:

Type	Percent
DC	82
CLVD	18
Iso	(null)

Moment Tensor (Aki & Richards Convention):

Mo	2.31e+21 Dyne-cm
Mxx	-2.038e+21 Dyne-cm
Mxy	-8.617e+20 Dyne-cm
Mxz	7.340e+19 Dyne-cm
Myy	2.248e+21 Dyne-cm
Myz	-1.033e+20 Dyne-cm
Mzz	-2.096e+20 Dyne-cm
Variance Reduction	75%
Version number	2
Solution time	2009/05/01 00:05:23 UTC

Best-fit Double Couple Solution

Plane	Strike	Rake	Dip
NP1	56	3	89
NP2	326	179	87

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