NCSS Moment Tensor Solution

Solution reviewed by Danielle Lindsay

Moment Tensor Diagram
Hypocentral Location:
Event ID73831091
Origin Time2023/01/11 17:21:43
Latitude40.5270
Longitude-124.9398
Depth (TT)11.6 km
Depth (MT; not authoritative)11 km fixed

Magnitudes:
Md3.9 (not authoritative)
Ml3.92 (not authoritative)
Mw4.05 (authoritative)

Principal Axes:
Scale1.0E+22 Dyne-cm
AxisValuePlungeAzimuth
T1.50329.00369.733
N-0.01860.335236.461
P-1.4855.703336.559

Source Composition:
TypePercent
DC98
CLVD2
Iso(null)
Moment Tensor (Aki & Richards Convention):
Mo1.49e+22 Dyne-cm
Mxx-1.101e+22 Dyne-cm
Mxy9.084e+21 Dyne-cm
Mxz9.033e+20 Dyne-cm
Myy7.761e+21 Dyne-cm
Myz6.629e+21 Dyne-cm
Mzz3.251e+21 Dyne-cm
Variance Reduction67%
Version number1
Solution time2023/01/11 17:55:27 UTC

Best-fit Double Couple Solution
PlaneStrikeRakeDip
NP12072574
NP210916366

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