Hypocentral Location:

Event ID	71766345
Origin Time	2012/04/17 20:31:35
Latitude	40.9737
Longitude	-124.4222
Depth (TT)	19.0 km
Depth (MT; not authoritative)	21 km fixed

Magnitudes:

Md	3.62 (not authoritative)
Ml	3.51 (not authoritative)
Mw	4.15 (authoritative)

Principal Axes:

Scale	1.0E+22 Dyne-cm
Axis	Value	Plunge	Azimuth
T	2.269	12.188	110.895
N	-0.333	77.673	282.166
P	-1.936	1.815	20.503

Source Composition:

Type	Percent
DC	71
CLVD	29
Iso	(null)

Moment Tensor (Aki & Richards Convention):

Mo	2.10e+22 Dyne-cm
Mxx	-1.422e+22 Dyne-cm
Mxy	-1.354e+22 Dyne-cm
Mxz	-2.390e+21 Dyne-cm
Myy	1.640e+22 Dyne-cm
Myz	4.837e+21 Dyne-cm
Mzz	-2.182e+21 Dyne-cm
Variance Reduction	68%
Version number	3
Solution time	2012/04/24 16:55:20 UTC

Best-fit Double Couple Solution

Plane	Strike	Rake	Dip
NP1	246	10	83
NP2	155	173	80

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