Hypocentral Location:

Event ID	30121914
Origin Time	1996/11/18 06:56:53
Latitude	38.7915
Longitude	-122.7460
Depth (TT)	1.9 km
Depth (MT; not authoritative)	3.5 km fixed

Magnitudes:

Ma	3.99 (not authoritative)
Md	3.85 (not authoritative)
Mw	3.89 (authoritative)

Principal Axes:

Scale	1.0E+21 Dyne-cm
Axis	Value	Plunge	Azimuth
T	9.914	4.204	105.158
N	-3.029	17.743	196.506
P	-6.886	71.733	2.290

Source Composition:

Type	Percent
DC	39
CLVD	61
Iso	(null)

Moment Tensor (Aki & Richards Convention):

Mo	8.40e+21 Dyne-cm
Mxx	-2.527e+21 Dyne-cm
Mxy	-3.264e+21 Dyne-cm
Mxz	-1.395e+21 Dyne-cm
Myy	8.964e+21 Dyne-cm
Myz	8.675e+20 Dyne-cm
Mzz	-6.437e+21 Dyne-cm
Variance Reduction	69%
Version number	90
Solution time	2011/07/14 22:29:26 UTC

Best-fit Double Couple Solution

Plane	Strike	Rake	Dip
NP1	31	-67	52
NP2	177	-116	44

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