Hypocentral Location:

Event ID	71282111
Origin Time	2009/09/17 00:52:55
Latitude	39.2860
Longitude	-123.4977
Depth (TT)	6.5 km
Depth (MT; not authoritative)	8 km fixed

Magnitudes:

Md	3.06 (not authoritative)
Ml	3.16 (not authoritative)
Mw	3.45 (authoritative)

Principal Axes:

Scale	1.0E+21 Dyne-cm
Axis	Value	Plunge	Azimuth
T	1.766	6.033	113.979
N	0.147	83.960	296.588
P	-1.913	0.273	204.008

Source Composition:

Type	Percent
DC	85
CLVD	15
Iso	(null)

Moment Tensor (Aki & Richards Convention):

Mo	1.84e+21 Dyne-cm
Mxx	-1.308e+21 Dyne-cm
Mxy	-1.360e+21 Dyne-cm
Mxz	-5.980e+19 Dyne-cm
Myy	1.143e+21 Dyne-cm
Myz	1.586e+20 Dyne-cm
Mzz	1.651e+20 Dyne-cm
Variance Reduction	78%
Version number	2
Solution time	2009/09/22 17:56:26 UTC

Best-fit Double Couple Solution

Plane	Strike	Rake	Dip
NP1	159	176	86
NP2	249	4	86

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