Hypocentral Location:

Event ID	73184841
Origin Time	2019/05/21 17:19:53
Latitude	40.6915
Longitude	-123.9630
Depth (TT)	20.7 km
Depth (MT; not authoritative)	21 km

Magnitudes:

Md	3.55 (not authoritative)
Ml	3.77 (authoritative)
Mw	3.78 (not authoritative)

Principal Axes:

Scale	1.0E+21 Dyne-cm
Axis	Value	Plunge	Azimuth
T	6.117	16.943	39.708
N	-0.597	15.656	134.605
P	-5.521	66.599	264.964

Source Composition:

Type	Percent
DC	80
CLVD	20
Iso	(null)

Moment Tensor (Aki & Richards Convention):

Mo	5.82e+21 Dyne-cm
Mxx	3.034e+21 Dyne-cm
Mxy	2.952e+21 Dyne-cm
Mxz	1.598e+21 Dyne-cm
Myy	1.140e+21 Dyne-cm
Myz	2.984e+21 Dyne-cm
Mzz	-4.174e+21 Dyne-cm
Variance Reduction	38%
Version number	1
Solution time	2019/05/21 18:06:31 UTC

Best-fit Double Couple Solution

Plane	Strike	Rake	Dip
NP1	323	-72	64
NP2	107	-121	31

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