NCSS Moment Tensor Solution

Solution reviewed by Danielle Lindsay

Moment Tensor Diagram
Hypocentral Location:
Event ID74018946
Origin Time2024/03/17 14:53:53
Latitude40.5570
Longitude-123.6735
Depth (TT)33.0 km
Depth (MT; not authoritative)33 km fixed

Magnitudes:
Md3.96 (not authoritative)
Ml4.03 (not authoritative)
Mw3.89 (authoritative)

Principal Axes:
Scale1.0E+21 Dyne-cm
AxisValuePlungeAzimuth
T8.4451.241104.996
N0.40984.0083.082
P-8.8545.861195.123

Source Composition:
TypePercent
DC91
CLVD9
Iso(null)
Moment Tensor (Aki & Richards Convention):
Mo8.65e+21 Dyne-cm
Mxx-7.595e+21 Dyne-cm
Mxy-4.316e+21 Dyne-cm
Mxz8.633e+20 Dyne-cm
Myy7.279e+21 Dyne-cm
Myz4.136e+20 Dyne-cm
Mzz3.159e+20 Dyne-cm
Variance Reduction78%
Version number2
Solution time2024/03/17 15:32:13 UTC

Best-fit Double Couple Solution
PlaneStrikeRakeDip
NP1330-17587
NP2240-385

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