Hypocentral Location:

Event ID	21397331
Origin Time	2004/09/21 05:51:43
Latitude	37.9987
Longitude	-118.7143
Depth (TT)	4.7 km
Depth (MT; not authoritative)	8 km

Magnitudes:

Md	3.66 (not authoritative)
Ml	3.72 (not authoritative)
Mw	3.61 (authoritative)

Principal Axes:

Scale	1.0E+21 Dyne-cm
Axis	Value	Plunge	Azimuth
T	2.637	36.643	302.792
N	1.152	50.630	97.822
P	-3.789	12.407	203.374

Source Composition:

Type	Percent
DC	39
CLVD	61
Iso	(null)

Moment Tensor (Aki & Richards Convention):

Mo	3.21e+21 Dyne-cm
Mxx	-2.539e+21 Dyne-cm
Mxy	-2.151e+21 Dyne-cm
Mxz	1.337e+21 Dyne-cm
Myy	1.086e+21 Dyne-cm
Myz	-1.862e+20 Dyne-cm
Mzz	1.453e+21 Dyne-cm
Variance Reduction	79%
Version number	1
Solution time	2009/10/24 03:58:01 UTC

Best-fit Double Couple Solution

Plane	Strike	Rake	Dip
NP1	78	37	74
NP2	336	161	55

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