NCSS Moment Tensor Solution

Solution reviewed by Claire Doody

Moment Tensor Diagram
Hypocentral Location:
Event ID73767655
Origin Time2022/08/13 12:33:36
Latitude40.7575
Longitude-123.9355
Depth (TT)22.6 km
Depth (MT; not authoritative)24 km fixed

Magnitudes:
Md3.53 (not authoritative)
Ml3.46 (not authoritative)
Mw3.57 (authoritative)

Principal Axes:
Scale1.0E+21 Dyne-cm
AxisValuePlungeAzimuth
T2.81912.13057.905
N-0.04876.046207.792
P-2.7726.793326.438

Source Composition:
TypePercent
DC97
CLVD3
Iso(null)
Moment Tensor (Aki & Richards Convention):
Mo2.80e+21 Dyne-cm
Mxx-1.139e+21 Dyne-cm
Mxy2.471e+21 Dyne-cm
Mxz4.640e+19 Dyne-cm
Myy1.098e+21 Dyne-cm
Myz6.759e+20 Dyne-cm
Mzz4.070e+19 Dyne-cm
Variance Reduction77%
Version number1
Solution time2022/08/13 20:58:58 UTC

Best-fit Double Couple Solution
PlaneStrikeRakeDip
NP11931386
NP210217677

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