Hypocentral Location:

Event ID	30225804
Origin Time	2003/05/20 16:50:42
Latitude	38.8012
Longitude	-122.8033
Depth (TT)	-0.1 km
Depth (MT; not authoritative)	1.5 km fixed

Magnitudes:

Md	3.51 (not authoritative)
Mw	4.05 (authoritative)

Principal Axes:

Scale	1.0E+22 Dyne-cm
Axis	Value	Plunge	Azimuth
T	1.566	22.294	103.041
N	-0.137	42.233	351.189
P	-1.429	39.483	212.783

Source Composition:

Type	Percent
DC	82
CLVD	18
Iso	(null)

Moment Tensor (Aki & Richards Convention):

Mo	1.50e+22 Dyne-cm
Mxx	-6.068e+21 Dyne-cm
Mxy	-6.707e+21 Dyne-cm
Mxz	3.979e+21 Dyne-cm
Myy	1.021e+22 Dyne-cm
Myz	9.255e+21 Dyne-cm
Mzz	-4.142e+21 Dyne-cm
Variance Reduction	80%
Version number	11
Solution time	2013/09/01 06:10:02 UTC

Best-fit Double Couple Solution

Plane	Strike	Rake	Dip
NP1	342	-133	80
NP2	241	-15	44

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