NCSS Moment Tensor Solution

Solution reviewed by Claire Doody

Moment Tensor Diagram

Variance Reduction vs Depth plot
Hypocentral Location:
Event ID73875700
Origin Time2023/04/20 03:35:47
Latitude37.9483
Longitude-121.8098
Depth (TT)16.4 km
Depth (MT; not authoritative)8 km

Magnitudes:
Md3.68 (not authoritative)
Ml3.72 (not authoritative)
Mw3.65 (authoritative)

Principal Axes:
Scale1.0E+21 Dyne-cm
AxisValuePlungeAzimuth
T3.7558.972115.298
N-0.01578.838258.446
P-3.7406.58524.253

Source Composition:
TypePercent
DC99
CLVD1
Iso(null)
Moment Tensor (Aki & Richards Convention):
Mo3.75e+21 Dyne-cm
Mxx-2.399e+21 Dyne-cm
Mxy-2.798e+21 Dyne-cm
Mxz-6.351e+20 Dyne-cm
Myy2.372e+21 Dyne-cm
Myz3.508e+20 Dyne-cm
Mzz2.760e+19 Dyne-cm
Variance Reduction65%
Version number3
Solution time2023/04/20 04:43:50 UTC

Best-fit Double Couple Solution
PlaneStrikeRakeDip
NP12501188
NP216017879

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