Hypocentral Location:

Event ID	21389171
Origin Time	2004/08/16 07:39:02
Latitude	35.6403
Longitude	-120.9352
Depth (TT)	7.3 km
Depth (MT; not authoritative)	8 km fixed

Magnitudes:

Md	3.74 (not authoritative)
Ml	3.82 (not authoritative)
Mw	3.65 (authoritative)

Principal Axes:

Scale	1.0E+21 Dyne-cm
Axis	Value	Plunge	Azimuth
T	3.822	46.930	194.771
N	-0.338	3.503	288.525
P	-3.484	42.856	21.781

Source Composition:

Type	Percent
DC	82
CLVD	18
Iso	(null)

Moment Tensor (Aki & Richards Convention):

Mo	3.65e+21 Dyne-cm
Mxx	1.810e+19 Dyne-cm
Mxy	-1.042e+20 Dyne-cm
Mxz	-3.463e+21 Dyne-cm
Myy	-4.448e+20 Dyne-cm
Myz	-1.111e+21 Dyne-cm
Mzz	4.267e+20 Dyne-cm
Variance Reduction	77%
Version number	2
Solution time	2009/10/23 04:47:51 UTC

Best-fit Double Couple Solution

Plane	Strike	Rake	Dip
NP1	288	86	88
NP2	168	150	4

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