NCSS Moment Tensor Solution

Solution reviewed by Peggy

Moment Tensor Diagram

Variance Reduction vs Depth plot
Hypocentral Location:
Event ID73138600
Origin Time2019/02/06 18:23:02
Latitude40.8448
Longitude-123.8408
Depth (TT)26.1 km
Depth (MT; not authoritative)30 km

Magnitudes:
Md4.2 (not authoritative)
Ml4.37 (not authoritative)
Mw4.39 (authoritative)

Principal Axes:
Scale1.0E+22 Dyne-cm
AxisValuePlungeAzimuth
T4.77727.470100.205
N0.15157.708245.555
P-4.92815.6341.839

Source Composition:
TypePercent
DC94
CLVD6
Iso(null)
Moment Tensor (Aki & Richards Convention):
Mo4.85e+22 Dyne-cm
Mxx-4.440e+22 Dyne-cm
Mxy-7.860e+21 Dyne-cm
Mxz-1.653e+22 Dyne-cm
Myy3.673e+22 Dyne-cm
Myz1.821e+22 Dyne-cm
Mzz7.665e+21 Dyne-cm
Variance Reduction80%
Version number3
Solution time2019/02/06 19:58:44 UTC

Best-fit Double Couple Solution
PlaneStrikeRakeDip
NP12333182
NP213817159

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