Hypocentral Location:

Event ID	71993641
Origin Time	2013/05/18 13:46:09
Latitude	40.2858
Longitude	-124.4603
Depth (TT)	23.3 km
Depth (MT; not authoritative)	18 km fixed

Magnitudes:

Md	4.07 (not authoritative)
Ml	3.72 (not authoritative)
Mw	4.28 (authoritative)

Principal Axes:

Scale	1.0E+22 Dyne-cm
Axis	Value	Plunge	Azimuth
T	3.338	27.790	79.998
N	-0.090	62.198	261.826
P	-3.248	0.755	170.395

Source Composition:

Type	Percent
DC	95
CLVD	5
Iso	(null)

Moment Tensor (Aki & Richards Convention):

Mo	3.29e+22 Dyne-cm
Mxx	-3.079e+22 Dyne-cm
Mxy	9.785e+21 Dyne-cm
Mxz	2.866e+21 Dyne-cm
Myy	2.424e+22 Dyne-cm
Myz	1.386e+22 Dyne-cm
Mzz	6.548e+21 Dyne-cm
Variance Reduction	86%
Version number	2
Solution time	2013/05/18 14:13:24 UTC

Best-fit Double Couple Solution

Plane	Strike	Rake	Dip
NP1	122	159	71
NP2	219	20	70

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