Hypocentral Location:

Event ID	73316566
Origin Time	2019/12/19 15:30:13
Latitude	40.2780
Longitude	-124.3572
Depth (TT)	21.0 km
Depth (MT; not authoritative)	30 km

Magnitudes:

Md	3.81 (not authoritative)
Ml	3.85 (not authoritative)
Mw	4.06 (authoritative)

Principal Axes:

Scale	1.0E+22 Dyne-cm
Axis	Value	Plunge	Azimuth
T	1.469	8.949	55.876
N	0.120	80.762	221.405
P	-1.588	2.271	325.519

Source Composition:

Type	Percent
DC	85
CLVD	15
Iso	(null)

Moment Tensor (Aki & Richards Convention):

Mo	1.53e+22 Dyne-cm
Mxx	-6.248e+21 Dyne-cm
Mxy	1.407e+22 Dyne-cm
Mxz	6.057e+20 Dyne-cm
Myy	4.753e+21 Dyne-cm
Myz	2.099e+21 Dyne-cm
Mzz	1.495e+21 Dyne-cm
Variance Reduction	57%
Version number	1
Solution time	2019/12/19 16:00:47 UTC

Best-fit Double Couple Solution

Plane	Strike	Rake	Dip
NP1	191	8	85
NP2	100	175	82

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