NCSS Moment Tensor Solution

Solution reviewed by Fabia Terra

Moment Tensor Diagram

Variance Reduction vs Depth plot
Hypocentral Location:
Event ID72946846
Origin Time2017/12/31 19:49:06
Latitude40.4797
Longitude-123.3940
Depth (TT)29.4 km
Depth (MT; not authoritative)39 km

Magnitudes:
Md3.68 (not authoritative)
Ml3.59 (not authoritative)
Mw3.76 (authoritative)

Principal Axes:
Scale1.0E+21 Dyne-cm
AxisValuePlungeAzimuth
T4.93441.305154.828
N0.84013.99652.177
P-5.77445.333307.572

Source Composition:
TypePercent
DC71
CLVD29
Iso(null)
Moment Tensor (Aki & Richards Convention):
Mo5.35e+21 Dyne-cm
Mxx1.517e+21 Dyne-cm
Mxy6.902e+20 Dyne-cm
Mxz-3.853e+21 Dyne-cm
Myy-7.953e+20 Dyne-cm
Myz3.484e+21 Dyne-cm
Mzz-7.216e+20 Dyne-cm
Variance Reduction75%
Version number3
Solution time2017/12/31 20:57:18 UTC

Best-fit Double Couple Solution
PlaneStrikeRakeDip
NP152-10488
NP2313-914

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