Hypocentral Location:

Event ID	72946846
Origin Time	2017/12/31 19:49:06
Latitude	40.4797
Longitude	-123.3940
Depth (TT)	29.4 km
Depth (MT; not authoritative)	39 km

Magnitudes:

Md	3.68 (not authoritative)
Ml	3.59 (not authoritative)
Mw	3.76 (authoritative)

Principal Axes:

Scale	1.0E+21 Dyne-cm
Axis	Value	Plunge	Azimuth
T	4.934	41.305	154.828
N	0.840	13.996	52.177
P	-5.774	45.333	307.572

Source Composition:

Type	Percent
DC	71
CLVD	29
Iso	(null)

Moment Tensor (Aki & Richards Convention):

Mo	5.35e+21 Dyne-cm
Mxx	1.517e+21 Dyne-cm
Mxy	6.902e+20 Dyne-cm
Mxz	-3.853e+21 Dyne-cm
Myy	-7.953e+20 Dyne-cm
Myz	3.484e+21 Dyne-cm
Mzz	-7.216e+20 Dyne-cm
Variance Reduction	75%
Version number	3
Solution time	2017/12/31 20:57:18 UTC

Best-fit Double Couple Solution

Plane	Strike	Rake	Dip
NP1	52	-104	88
NP2	313	-9	14

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