Hypocentral Location:

Event ID	73961261
Origin Time	2023/11/11 03:15:25
Latitude	40.4173
Longitude	-124.7997
Depth (TT)	18.2 km
Depth (MT; not authoritative)	18 km fixed

Magnitudes:

Md	3.97 (not authoritative)
Ml	4.2 (not authoritative)
Mw	4.1 (authoritative)

Principal Axes:

Scale	1.0E+22 Dyne-cm
Axis	Value	Plunge	Azimuth
T	1.780	2.577	75.817
N	0.004	79.383	331.925
P	-1.784	10.292	166.285

Source Composition:

Type	Percent
DC	100
CLVD	0
Iso	(null)

Moment Tensor (Aki & Richards Convention):

Mo	1.78e+22 Dyne-cm
Mxx	-1.523e+22 Dyne-cm
Mxy	8.195e+21 Dyne-cm
Mxz	3.248e+21 Dyne-cm
Myy	1.572e+22 Dyne-cm
Myz	2.820e+19 Dyne-cm
Mzz	-4.952e+20 Dyne-cm
Variance Reduction	85%
Version number	2
Solution time	2023/11/11 04:08:27 UTC

Best-fit Double Couple Solution

Plane	Strike	Rake	Dip
NP1	301	-171	85
NP2	211	-5	81

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