NCSS Moment Tensor Solution

Solution reviewed by Danielle Lindsay

Moment Tensor Diagram

Variance Reduction vs Depth plot
Hypocentral Location:
Event ID73493050
Origin Time2020/12/04 10:45:06
Latitude38.8215
Longitude-122.8077
Depth (TT)2.4 km
Depth (MT; not authoritative)8 km

Magnitudes:
Md3.4 (not authoritative)
Ml3.5 (not authoritative)
Mw3.71 (authoritative)

Principal Axes:
Scale1.0E+21 Dyne-cm
AxisValuePlungeAzimuth
T4.41512.586301.936
N0.21449.216196.937
P-4.62938.01041.985

Source Composition:
TypePercent
DC91
CLVD9
Iso(null)
Moment Tensor (Aki & Richards Convention):
Mo4.52e+21 Dyne-cm
Mxx-3.275e+20 Dyne-cm
Mxy-3.291e+21 Dyne-cm
Mxz-1.274e+21 Dyne-cm
Myy1.751e+21 Dyne-cm
Myz-2.330e+21 Dyne-cm
Mzz-1.423e+21 Dyne-cm
Variance Reduction69%
Version number1
Solution time2020/12/04 15:20:02 UTC

Best-fit Double Couple Solution
PlaneStrikeRakeDip
NP1177-14274
NP275-2054

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