NCSS Moment Tensor Solution

Solution reviewed by Christina V

Moment Tensor Diagram
Hypocentral Location:
Event ID73934641
Origin Time2023/09/08 17:24:38
Latitude40.9530
Longitude-121.5600
Depth (TT)15.6 km
Depth (MT; not authoritative)14 km fixed

Magnitudes:
Md5.09 (not authoritative)
Ml4.75 (not authoritative)
Mw4.99 (authoritative)

Principal Axes:
Scale1.0E+23 Dyne-cm
AxisValuePlungeAzimuth
T4.0320.60688.778
N-0.52665.005180.079
P-3.50624.987358.496

Source Composition:
TypePercent
DC74
CLVD26
Iso(null)
Moment Tensor (Aki & Richards Convention):
Mo3.77e+23 Dyne-cm
Mxx-2.971e+23 Dyne-cm
Mxy1.614e+22 Dyne-cm
Mxz-1.140e+23 Dyne-cm
Myy4.028e+23 Dyne-cm
Myz7.818e+21 Dyne-cm
Mzz-1.057e+23 Dyne-cm
Variance Reduction93%
Version number2
Solution time2023/09/08 19:38:38 UTC

Best-fit Double Couple Solution
PlaneStrikeRakeDip
NP141-1973
NP2136-16272

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