Hypocentral Location:

Event ID	21425113
Origin Time	2004/12/05 01:48:05
Latitude	40.7388
Longitude	-123.8153
Depth (TT)	28.0 km
Depth (MT; not authoritative)	30 km fixed

Magnitudes:

Md	4.16 (not authoritative)
Mw	4.3 (authoritative)

Principal Axes:

Scale	1.0E+22 Dyne-cm
Axis	Value	Plunge	Azimuth
T	3.570	0.893	78.676
N	-0.027	9.638	348.525
P	-3.543	80.320	173.918

Source Composition:

Type	Percent
DC	98
CLVD	2
Iso	(null)

Moment Tensor (Aki & Richards Convention):

Mo	3.56e+22 Dyne-cm
Mxx	1.308e+20 Dyne-cm
Mxy	7.029e+21 Dyne-cm
Mxz	5.904e+21 Dyne-cm
Myy	3.429e+22 Dyne-cm
Myz	-6.780e+19 Dyne-cm
Mzz	-3.442e+22 Dyne-cm
Variance Reduction	82%
Version number	1
Solution time	2009/10/20 18:03:56 UTC

Best-fit Double Couple Solution

Plane	Strike	Rake	Dip
NP1	339	-103	47
NP2	178	-76	45

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