NCSS Moment Tensor Solution

Solution reviewed by Yuancong Gou

Moment Tensor Diagram

Variance Reduction vs Depth plot
Hypocentral Location:
Event ID73943821
Origin Time2023/09/30 15:26:27
Latitude40.5542
Longitude-124.2723
Depth (TT)16.3 km
Depth (MT; not authoritative)18 km

Magnitudes:
Md4.76 (not authoritative)
Ml4.58 (not authoritative)
Mw4.65 (authoritative)

Principal Axes:
Scale1.0E+22 Dyne-cm
AxisValuePlungeAzimuth
T12.0352.948117.922
N-0.55784.016237.347
P-11.4785.20327.654

Source Composition:
TypePercent
DC91
CLVD9
Iso(null)
Moment Tensor (Aki & Richards Convention):
Mo1.18e+23 Dyne-cm
Mxx-6.301e+22 Dyne-cm
Mxy-9.649e+22 Dyne-cm
Mxz-1.177e+22 Dyne-cm
Myy6.914e+22 Dyne-cm
Myz1.136e+21 Dyne-cm
Mzz-6.132e+21 Dyne-cm
Variance Reduction91%
Version number3
Solution time2023/09/30 16:51:49 UTC

Best-fit Double Couple Solution
PlaneStrikeRakeDip
NP173-688
NP2163-17884

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