NCSS Moment Tensor Solution

Solution reviewed by Nam Maneerat

Moment Tensor Diagram

Variance Reduction vs Depth plot
Hypocentral Location:
Event ID73666446
Origin Time2021/12/20 21:19:58
Latitude40.4615
Longitude-124.2840
Depth (TT)23.8 km
Depth (MT; not authoritative)39 km

Magnitudes:
Md3.56 (not authoritative)
Ml3.5 (not authoritative)
Mw4.46 (authoritative)

Principal Axes:
Scale1.0E+22 Dyne-cm
AxisValuePlungeAzimuth
T6.2621.610339.420
N-0.13786.527221.841
P-6.1263.07769.507

Source Composition:
TypePercent
DC96
CLVD4
Iso(null)
Moment Tensor (Aki & Richards Convention):
Mo6.19e+22 Dyne-cm
Mxx4.735e+22 Dyne-cm
Mxy-4.062e+22 Dyne-cm
Mxz5.581e+20 Dyne-cm
Myy-4.586e+22 Dyne-cm
Myz-3.638e+21 Dyne-cm
Mzz-1.488e+21 Dyne-cm
Variance Reduction57%
Version number2
Solution time2021/12/20 22:13:12 UTC

Best-fit Double Couple Solution
PlaneStrikeRakeDip
NP1204-17789
NP2114-187

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