Hypocentral Location:

Event ID	72937001
Origin Time	2017/12/08 22:19:17
Latitude	37.5473
Longitude	-118.8103
Depth (TT)	2.8 km
Depth (MT; not authoritative)	5 km

Magnitudes:

Md	3.87 (not authoritative)
Ml	3.99 (not authoritative)
Mw	3.78 (authoritative)

Principal Axes:

Scale	1.0E+21 Dyne-cm
Axis	Value	Plunge	Azimuth
T	6.170	4.046	60.103
N	-0.698	4.425	329.789
P	-5.472	83.999	192.394

Source Composition:

Type	Percent
DC	77
CLVD	23
Iso	(null)

Moment Tensor (Aki & Richards Convention):

Mo	5.82e+21 Dyne-cm
Mxx	9.499e+20 Dyne-cm
Mxy	2.942e+21 Dyne-cm
Mxz	7.257e+20 Dyne-cm
Myy	4.435e+21 Dyne-cm
Myz	5.256e+20 Dyne-cm
Mzz	-5.385e+21 Dyne-cm
Variance Reduction	60%
Version number	1
Solution time	2017/12/09 00:46:23 UTC

Best-fit Double Couple Solution

Plane	Strike	Rake	Dip
NP1	326	-96	49
NP2	155	-83	41

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