Hypocentral Location:

Event ID	21120807
Origin Time	2000/08/21 04:45:14
Latitude	39.3343
Longitude	-123.0350
Depth (TT)	10.7 km
Depth (MT; not authoritative)	8 km fixed

Magnitudes:

Ma	3.7 (not authoritative)
Md	3.9 (not authoritative)
Ml	3.71 (not authoritative)
Mw	3.97 (authoritative)

Principal Axes:

Scale	1.0E+22 Dyne-cm
Axis	Value	Plunge	Azimuth
T	1.066	12.565	281.617
N	0.130	67.825	44.766
P	-1.196	17.966	187.472

Source Composition:

Type	Percent
DC	78
CLVD	22
Iso	(null)

Moment Tensor (Aki & Richards Convention):

Mo	1.13e+22 Dyne-cm
Mxx	-1.013e+22 Dyne-cm
Mxy	-3.307e+21 Dyne-cm
Mxz	4.257e+21 Dyne-cm
Myy	9.655e+21 Dyne-cm
Myz	-1.442e+21 Dyne-cm
Mzz	4.790e+20 Dyne-cm
Variance Reduction	87%
Version number	4
Solution time	2012/02/19 03:08:40 UTC

Best-fit Double Couple Solution

Plane	Strike	Rake	Dip
NP1	234	-22	86
NP2	325	-176	68

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