NCSS Moment Tensor Solution

Solution reviewed by William Hawley

Moment Tensor Diagram

Variance Reduction vs Depth plot
Hypocentral Location:
Event ID72789886
Origin Time2017/04/17 20:31:45
Latitude38.7755
Longitude-122.7262
Depth (TT)1.0 km
Depth (MT; not authoritative)1.5 km

Magnitudes:
Md3.61 (not authoritative)
Ml3.54 (not authoritative)
Mw3.73 (authoritative)

Principal Axes:
Scale1.0E+21 Dyne-cm
AxisValuePlungeAzimuth
T5.2257.429278.998
N-0.48826.44612.717
P-4.73662.371174.572

Source Composition:
TypePercent
DC81
CLVD19
Iso(null)
Moment Tensor (Aki & Richards Convention):
Mo4.98e+21 Dyne-cm
Mxx-1.256e+21 Dyne-cm
Mxy-7.817e+20 Dyne-cm
Mxz1.852e+21 Dyne-cm
Myy4.984e+21 Dyne-cm
Myz-8.886e+20 Dyne-cm
Mzz-3.727e+21 Dyne-cm
Variance Reduction60%
Version number2
Solution time2017/04/17 21:31:22 UTC

Best-fit Double Couple Solution
PlaneStrikeRakeDip
NP1211-5858
NP2342-13044

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