Hypocentral Location:

Event ID	21361036
Origin Time	2004/04/29 19:49:59
Latitude	37.7282
Longitude	-121.8170
Depth (TT)	18.7 km
Depth (MT; not authoritative)	18 km

Magnitudes:

Md	3.74 (not authoritative)
Ml	3.63 (not authoritative)
Mw	3.75 (authoritative)

Principal Axes:

Scale	1.0E+21 Dyne-cm
Axis	Value	Plunge	Azimuth
T	5.098	67.400	88.752
N	0.190	19.743	299.187
P	-5.288	10.557	205.351

Source Composition:

Type	Percent
DC	93
CLVD	7
Iso	(null)

Moment Tensor (Aki & Richards Convention):

Mo	5.19e+21 Dyne-cm
Mxx	-4.133e+21 Dyne-cm
Mxy	-2.033e+21 Dyne-cm
Mxz	9.296e+20 Dyne-cm
Myy	-5.600e+19 Dyne-cm
Myz	2.163e+21 Dyne-cm
Mzz	4.189e+21 Dyne-cm
Variance Reduction	74%
Version number	1
Solution time	2009/10/21 05:37:02 UTC

Best-fit Double Couple Solution

Plane	Strike	Rake	Dip
NP1	132	113	58
NP2	272	57	39

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