NCSS Moment Tensor Solution

Solution reviewed by Peggy

Moment Tensor Diagram

Variance Reduction vs Depth plot
Hypocentral Location:
Event ID73821046
Origin Time2022/12/20 10:39:02
Latitude40.5228
Longitude-124.1882
Depth (TT)26.6 km
Depth (MT; not authoritative)21 km

Magnitudes:
Md4.43 (not authoritative)
Ml4.55 (not authoritative)
Mw4.92 (authoritative)

Principal Axes:
Scale1.0E+23 Dyne-cm
AxisValuePlungeAzimuth
T3.07816.503287.104
N-0.25867.776150.625
P-2.82114.46221.486

Source Composition:
TypePercent
DC83
CLVD17
Iso(null)
Moment Tensor (Aki & Richards Convention):
Mo2.95e+23 Dyne-cm
Mxx-2.073e+23 Dyne-cm
Mxy-1.681e+23 Dyne-cm
Mxz-3.095e+22 Dyne-cm
Myy2.221e+23 Dyne-cm
Myz-1.095e+23 Dyne-cm
Mzz-1.482e+22 Dyne-cm
Variance Reduction64%
Version number1
Solution time2022/12/21 01:10:06 UTC

Best-fit Double Couple Solution
PlaneStrikeRakeDip
NP133415889
NP265268

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