Hypocentral Location:

Event ID	71500870
Origin Time	2010/12/24 12:59:20
Latitude	40.5442
Longitude	-123.8688
Depth (TT)	24.5 km
Depth (MT; not authoritative)	21 km fixed

Magnitudes:

Md	3.51 (not authoritative)
Ml	3.25 (not authoritative)
Mw	3.69 (authoritative)

Principal Axes:

Scale	1.0E+21 Dyne-cm
Axis	Value	Plunge	Azimuth
T	4.229	16.166	88.468
N	-0.040	36.104	346.263
P	-4.189	49.329	198.184

Source Composition:

Type	Percent
DC	98
CLVD	2
Iso	(null)

Moment Tensor (Aki & Richards Convention):

Mo	4.21e+21 Dyne-cm
Mxx	-1.628e+21 Dyne-cm
Mxy	-4.172e+20 Dyne-cm
Mxz	1.979e+21 Dyne-cm
Myy	3.724e+21 Dyne-cm
Myz	1.781e+21 Dyne-cm
Mzz	-2.096e+21 Dyne-cm
Variance Reduction	50%
Version number	1
Solution time	2010/12/26 20:12:22 UTC

Best-fit Double Couple Solution

Plane	Strike	Rake	Dip
NP1	331	-129	70
NP2	218	-30	43

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