Hypocentral Location:

Event ID	21335949
Origin Time	2004/01/21 06:23:01
Latitude	37.7243
Longitude	-121.8155
Depth (TT)	18.6 km
Depth (MT; not authoritative)	14 km

Magnitudes:

Md	3.66 (not authoritative)
Ml	3.53 (not authoritative)
Mw	3.71 (authoritative)

Principal Axes:

Scale	1.0E+21 Dyne-cm
Axis	Value	Plunge	Azimuth
T	4.250	72.513	89.560
N	0.644	15.267	299.516
P	-4.894	8.323	207.228

Source Composition:

Type	Percent
DC	74
CLVD	26
Iso	(null)

Moment Tensor (Aki & Richards Convention):

Mo	4.57e+21 Dyne-cm
Mxx	-3.643e+21 Dyne-cm
Mxy	-2.203e+21 Dyne-cm
Mxz	7.132e+20 Dyne-cm
Myy	-1.656e+20 Dyne-cm
Myz	1.396e+21 Dyne-cm
Mzz	3.809e+21 Dyne-cm
Variance Reduction	71%
Version number	1
Solution time	2009/10/20 03:12:04 UTC

Best-fit Double Couple Solution

Plane	Strike	Rake	Dip
NP1	130	109	55
NP2	280	65	39

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