Hypocentral Location:

Event ID	73671446
Origin Time	2021/12/31 20:57:46
Latitude	40.4818
Longitude	-124.3198
Depth (TT)	18.3 km
Depth (MT; not authoritative)	18 km

Magnitudes:

Md	3.66 (not authoritative)
Ml	3.8 (not authoritative)
Mw	3.81 (authoritative)

Principal Axes:

Scale	1.0E+21 Dyne-cm
Axis	Value	Plunge	Azimuth
T	6.108	3.699	96.522
N	0.594	82.401	215.505
P	-6.701	6.629	6.092

Source Composition:

Type	Percent
DC	82
CLVD	18
Iso	(null)

Moment Tensor (Aki & Richards Convention):

Mo	6.40e+21 Dyne-cm
Mxx	-6.452e+21 Dyne-cm
Mxy	-1.379e+21 Dyne-cm
Mxz	-8.721e+20 Dyne-cm
Myy	5.933e+21 Dyne-cm
Myz	2.639e+20 Dyne-cm
Mzz	5.194e+20 Dyne-cm
Variance Reduction	75%
Version number	1
Solution time	2021/12/31 21:33:41 UTC

Best-fit Double Couple Solution

Plane	Strike	Rake	Dip
NP1	51	-7	88
NP2	141	-178	83

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