Hypocentral Location:

Event ID	316220
Origin Time	1992/09/19 23:04:47
Latitude	38.8600
Longitude	-122.7918
Depth (TT)	2.9 km
Depth (MT; not authoritative)	3.5 km fixed

Magnitudes:

Ma	4.35 (not authoritative)
Md	4.38 (not authoritative)
Mw	4.47 (authoritative)

Principal Axes:

Scale	1.0E+22 Dyne-cm
Axis	Value	Plunge	Azimuth
T	7.690	4.758	302.544
N	-2.887	5.579	33.010
P	-4.803	82.658	172.305

Source Composition:

Type	Percent
DC	25
CLVD	75
Iso	(null)

Moment Tensor (Aki & Richards Convention):

Mo	6.25e+22 Dyne-cm
Mxx	1.220e+21 Dyne-cm
Mxy	-4.759e+22 Dyne-cm
Mxz	7.109e+21 Dyne-cm
Myy	4.577e+22 Dyne-cm
Myz	-7.695e+21 Dyne-cm
Mzz	-4.699e+22 Dyne-cm
Variance Reduction	66%
Version number	1
Solution time	2011/05/24 23:24:58 UTC

Best-fit Double Couple Solution

Plane	Strike	Rake	Dip
NP1	218	-83	50
NP2	26	-99	41

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