Hypocentral Location:

Event ID	21396101
Origin Time	2004/09/18 12:39:20
Latitude	38.0142
Longitude	-118.6805
Depth (TT)	-1.7 km
Depth (MT; not authoritative)	8 km

Magnitudes:

Md	3.52 (not authoritative)
Mw	3.46 (authoritative)

Principal Axes:

Scale	1.0E+21 Dyne-cm
Axis	Value	Plunge	Azimuth
T	1.662	0.305	293.533
N	0.510	64.849	24.182
P	-2.172	25.149	203.390

Source Composition:

Type	Percent
DC	53
CLVD	47
Iso	(null)

Moment Tensor (Aki & Richards Convention):

Mo	1.92e+21 Dyne-cm
Mxx	-1.158e+21 Dyne-cm
Mxy	-1.222e+21 Dyne-cm
Mxz	9.495e+20 Dyne-cm
Myy	1.132e+21 Dyne-cm
Myz	4.040e+20 Dyne-cm
Mzz	2.580e+19 Dyne-cm
Variance Reduction	75%
Version number	1
Solution time	2009/10/23 06:02:55 UTC

Best-fit Double Couple Solution

Plane	Strike	Rake	Dip
NP1	246	-19	73
NP2	341	-162	72

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