NCSS Moment Tensor Solution

Solution reviewed by William Hawley

Moment Tensor Diagram

Variance Reduction vs Depth plot
Hypocentral Location:
Event ID72897116
Origin Time2017/09/22 23:17:19
Latitude40.4953
Longitude-124.4173
Depth (TT)26.9 km
Depth (MT; not authoritative)33 km

Magnitudes:
Md3.59 (not authoritative)
Ml3.58 (not authoritative)
Mw3.91 (authoritative)

Principal Axes:
Scale1.0E+21 Dyne-cm
AxisValuePlungeAzimuth
T8.5500.781115.833
N0.91373.951208.550
P-9.46316.02925.608

Source Composition:
TypePercent
DC81
CLVD19
Iso(null)
Moment Tensor (Aki & Richards Convention):
Mo9.01e+21 Dyne-cm
Mxx-5.432e+21 Dyne-cm
Mxy-6.730e+21 Dyne-cm
Mxz-2.529e+21 Dyne-cm
Myy5.308e+21 Dyne-cm
Myz-1.096e+21 Dyne-cm
Mzz1.235e+20 Dyne-cm
Variance Reduction80%
Version number1
Solution time2017/09/23 00:36:00 UTC

Best-fit Double Couple Solution
PlaneStrikeRakeDip
NP170-1279
NP2162-16978

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