NCSS Moment Tensor Solution

Solution reviewed by Katie Wooddell

Moment Tensor Diagram

Variance Reduction vs Depth plot
Hypocentral Location:
Event ID72939656
Origin Time2017/12/14 04:57:18
Latitude39.6003
Longitude-123.6693
Depth (TT)6.1 km
Depth (MT; not authoritative)11 km

Magnitudes:
Md4.06 (not authoritative)
Ml4.21 (not authoritative)
Mw4.26 (authoritative)

Principal Axes:
Scale1.0E+22 Dyne-cm
AxisValuePlungeAzimuth
T3.12313.447294.498
N-0.19274.35083.091
P-2.9317.858202.607

Source Composition:
TypePercent
DC88
CLVD12
Iso(null)
Moment Tensor (Aki & Richards Convention):
Mo3.03e+22 Dyne-cm
Mxx-1.944e+22 Dyne-cm
Mxy-2.137e+22 Dyne-cm
Mxz6.535e+21 Dyne-cm
Myy2.007e+22 Dyne-cm
Myz-5.396e+21 Dyne-cm
Mzz-6.367e+20 Dyne-cm
Variance Reduction84%
Version number3
Solution time2017/12/14 18:07:52 UTC

Best-fit Double Couple Solution
PlaneStrikeRakeDip
NP1691586
NP233817675

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