Hypocentral Location:

Event ID	71296155
Origin Time	2009/10/18 15:47:30
Latitude	39.8523
Longitude	-120.7927
Depth (TT)	5.5 km
Depth (MT; not authoritative)	5 km fixed

Magnitudes:

Md	3.25 (not authoritative)
Ml	3.18 (not authoritative)
Mw	3.11 (authoritative)

Principal Axes:

Scale	1.0E+20 Dyne-cm
Axis	Value	Plunge	Azimuth
T	5.277	26.740	59.470
N	0.810	63.221	242.806
P	-6.087	1.342	150.146

Source Composition:

Type	Percent
DC	73
CLVD	27
Iso	(null)

Moment Tensor (Aki & Richards Convention):

Mo	5.68e+20 Dyne-cm
Mxx	-3.456e+20 Dyne-cm
Mxy	4.535e+20 Dyne-cm
Mxz	1.052e+20 Dyne-cm
Myy	1.745e+20 Dyne-cm
Myz	1.466e+20 Dyne-cm
Mzz	1.710e+20 Dyne-cm
Variance Reduction	50%
Version number	1
Solution time	2009/10/18 21:22:36 UTC

Best-fit Double Couple Solution

Plane	Strike	Rake	Dip
NP1	102	159	72
NP2	198	19	70

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