NCSS Moment Tensor Solution

Solution reviewed by Danielle Lindsay

Moment Tensor Diagram
Hypocentral Location:
Event ID73860415
Origin Time2023/03/21 23:18:20
Latitude40.5415
Longitude-124.3725
Depth (TT)18.1 km
Depth (MT; not authoritative)18 km fixed

Magnitudes:
Md4.67 (not authoritative)
Ml4.24 (not authoritative)
Mw4.54 (authoritative)

Principal Axes:
Scale1.0E+22 Dyne-cm
AxisValuePlungeAzimuth
T7.9448.924111.548
N-0.06759.155216.792
P-7.87729.25516.503

Source Composition:
TypePercent
DC98
CLVD2
Iso(null)
Moment Tensor (Aki & Richards Convention):
Mo7.91e+22 Dyne-cm
Mxx-4.477e+22 Dyne-cm
Mxy-4.290e+22 Dyne-cm
Mxz-3.643e+22 Dyne-cm
Myy6.217e+22 Dyne-cm
Myz1.961e+21 Dyne-cm
Mzz-1.740e+22 Dyne-cm
Variance Reduction82%
Version number6
Solution time2023/03/22 03:21:24 UTC

Best-fit Double Couple Solution
PlaneStrikeRakeDip
NP161-2876
NP2158-16563

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