Hypocentral Location:

Event ID	73889641
Origin Time	2023/05/18 15:55:53
Latitude	40.2328
Longitude	-121.1455
Depth (TT)	-1.4 km
Depth (MT; not authoritative)	11 km fixed

Magnitudes:

Md	3.74 (not authoritative)
Ml	3.82 (not authoritative)
Mw	3.72 (authoritative)

Principal Axes:

Scale	1.0E+21 Dyne-cm
Axis	Value	Plunge	Azimuth
T	4.748	20.919	80.947
N	-0.044	49.374	324.489
P	-4.703	32.990	185.315

Source Composition:

Type	Percent
DC	98
CLVD	2
Iso	(null)

Moment Tensor (Aki & Richards Convention):

Mo	4.72e+21 Dyne-cm
Mxx	-3.190e+21 Dyne-cm
Mxy	3.474e+20 Dyne-cm
Mxz	2.370e+21 Dyne-cm
Myy	4.005e+21 Dyne-cm
Myz	1.775e+21 Dyne-cm
Mzz	-8.148e+20 Dyne-cm
Variance Reduction	72%
Version number	3
Solution time	2023/05/18 16:19:38 UTC

Best-fit Double Couple Solution

Plane	Strike	Rake	Dip
NP1	316	-140	82
NP2	219	-10	50

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