NCSS Moment Tensor Solution

Computer-generated solution; not reviewed

Moment Tensor Diagram

Variance Reduction vs Depth plot
Hypocentral Location:
Event ID72955520
Origin Time2018/01/18 05:55:12
Latitude38.7890
Longitude-122.7457
Depth (TT)0.3 km
Depth (MT; not authoritative)5 km

Magnitudes:
Md4.09 (not authoritative)
Ml4.06 (not authoritative)
Mw4.22 (authoritative)

Principal Axes:
Scale1.0E+22 Dyne-cm
AxisValuePlungeAzimuth
T3.0868.314107.783
N-0.90322.75114.270
P-2.18365.614216.590

Source Composition:
TypePercent
DC41
CLVD59
Iso(null)
Moment Tensor (Aki & Richards Convention):
Mo2.63e+22 Dyne-cm
Mxx-6.797e+21 Dyne-cm
Mxy-1.240e+22 Dyne-cm
Mxz2.119e+21 Dyne-cm
Myy2.561e+22 Dyne-cm
Myz8.303e+21 Dyne-cm
Mzz-1.881e+22 Dyne-cm
Variance Reduction84%
Version number1
Solution time2018/01/18 06:05:48 UTC

Best-fit Double Couple Solution
PlaneStrikeRakeDip
NP1359-11757
NP2222-5442

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