Hypocentral Location:

Event ID	71907486
Origin Time	2012/12/19 12:02:24
Latitude	40.2800
Longitude	-124.3597
Depth (TT)	18.9 km
Depth (MT; not authoritative)	18 km fixed

Magnitudes:

Md	3.49 (not authoritative)
Ml	3.43 (not authoritative)
Mw	3.79 (authoritative)

Principal Axes:

Scale	1.0E+21 Dyne-cm
Axis	Value	Plunge	Azimuth
T	6.183	8.288	57.468
N	-0.320	81.704	234.967
P	-5.863	0.357	327.416

Source Composition:

Type	Percent
DC	90
CLVD	10
Iso	(null)

Moment Tensor (Aki & Richards Convention):

Mo	6.02e+21 Dyne-cm
Mxx	-2.414e+21 Dyne-cm
Mxy	5.402e+21 Dyne-cm
Mxz	4.697e+20 Dyne-cm
Myy	2.599e+21 Dyne-cm
Myz	8.006e+20 Dyne-cm
Mzz	-1.847e+20 Dyne-cm
Variance Reduction	60%
Version number	2
Solution time	2012/12/19 23:01:21 UTC

Best-fit Double Couple Solution

Plane	Strike	Rake	Dip
NP1	193	6	84
NP2	102	174	84

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