NCSS Moment Tensor Solution

Solution reviewed by Claire Doody

Moment Tensor Diagram

Variance Reduction vs Depth plot
Hypocentral Location:
Event ID73554385
Origin Time2021/04/25 15:33:24
Latitude39.1373
Longitude-120.0458
Depth (TT)-2.0 km
Depth (MT; not authoritative)11 km

Magnitudes:
Md3.79 (not authoritative)
Ml4.01 (not authoritative)
Mw3.7 (authoritative)

Principal Axes:
Scale1.0E+21 Dyne-cm
AxisValuePlungeAzimuth
T4.33316.241294.658
N0.09861.01356.381
P-4.43223.313197.446

Source Composition:
TypePercent
DC96
CLVD4
Iso(null)
Moment Tensor (Aki & Richards Convention):
Mo4.38e+21 Dyne-cm
Mxx-2.699e+21 Dyne-cm
Mxy-2.573e+21 Dyne-cm
Mxz2.045e+21 Dyne-cm
Myy2.979e+21 Dyne-cm
Myz-5.399e+20 Dyne-cm
Mzz-2.799e+20 Dyne-cm
Variance Reduction80%
Version number2
Solution time2021/04/25 16:15:47 UTC

Best-fit Double Couple Solution
PlaneStrikeRakeDip
NP1245-2985
NP2337-17561

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