NCSS Moment Tensor Solution

Solution reviewed by Nam Maneerat

Moment Tensor Diagram

Variance Reduction vs Depth plot
Hypocentral Location:
Event ID73666136
Origin Time2021/12/20 14:25:06
Latitude40.2925
Longitude-124.5173
Depth (TT)19.2 km
Depth (MT; not authoritative)33 km

Magnitudes:
Md3.77 (not authoritative)
Ml3.79 (not authoritative)
Mw3.98 (authoritative)

Principal Axes:
Scale1.0E+22 Dyne-cm
AxisValuePlungeAzimuth
T1.19022.04249.630
N-0.04267.900225.280
P-1.1471.516319.016

Source Composition:
TypePercent
DC93
CLVD7
Iso(null)
Moment Tensor (Aki & Richards Convention):
Mo1.17e+22 Dyne-cm
Mxx-2.275e+21 Dyne-cm
Mxy1.069e+22 Dyne-cm
Mxz2.555e+21 Dyne-cm
Myy9.712e+20 Dyne-cm
Myz3.457e+21 Dyne-cm
Mzz1.304e+21 Dyne-cm
Variance Reduction77%
Version number7
Solution time2021/12/20 15:51:23 UTC

Best-fit Double Couple Solution
PlaneStrikeRakeDip
NP11861776
NP29216573

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