Hypocentral Location:

Event ID	21225043
Origin Time	2002/05/09 11:07:56
Latitude	38.7978
Longitude	-122.7298
Depth (TT)	2.7 km
Depth (MT; not authoritative)	3.5 km fixed

Magnitudes:

Ma	3.55 (not authoritative)
Md	3.51 (not authoritative)
Ml	3.58 (not authoritative)
Mw	3.78 (authoritative)

Principal Axes:

Scale	1.0E+21 Dyne-cm
Axis	Value	Plunge	Azimuth
T	6.536	4.233	103.266
N	-1.427	53.303	7.566
P	-5.109	36.371	196.390

Source Composition:

Type	Percent
DC	56
CLVD	44
Iso	(null)

Moment Tensor (Aki & Richards Convention):

Mo	5.82e+21 Dyne-cm
Mxx	-3.207e+21 Dyne-cm
Mxy	-2.415e+21 Dyne-cm
Mxz	1.552e+21 Dyne-cm
Myy	5.886e+21 Dyne-cm
Myz	1.067e+21 Dyne-cm
Mzz	-2.678e+21 Dyne-cm
Variance Reduction	79%
Version number	5
Solution time	2013/07/30 20:03:26 UTC

Best-fit Double Couple Solution

Plane	Strike	Rake	Dip
NP1	336	-150	68
NP2	233	-25	62

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