NCSS Moment Tensor Solution

Solution reviewed by Claire Doody

Moment Tensor Diagram

Variance Reduction vs Depth plot
Hypocentral Location:
Event ID73834231
Origin Time2023/01/20 01:18:08
Latitude38.7500
Longitude-123.0967
Depth (TT)4.4 km
Depth (MT; not authoritative)5 km

Magnitudes:
Md3.52 (not authoritative)
Ml3.64 (not authoritative)
Mw3.59 (authoritative)

Principal Axes:
Scale1.0E+21 Dyne-cm
AxisValuePlungeAzimuth
T3.2027.429280.133
N-0.31270.42131.638
P-2.89018.009187.704

Source Composition:
TypePercent
DC81
CLVD19
Iso(null)
Moment Tensor (Aki & Richards Convention):
Mo3.05e+21 Dyne-cm
Mxx-2.495e+21 Dyne-cm
Mxy-9.082e+20 Dyne-cm
Mxz8.306e+20 Dyne-cm
Myy2.994e+21 Dyne-cm
Myz-3.418e+20 Dyne-cm
Mzz-4.994e+20 Dyne-cm
Variance Reduction81%
Version number1
Solution time2023/01/20 01:34:28 UTC

Best-fit Double Couple Solution
PlaneStrikeRakeDip
NP1233-1883
NP2325-17272

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