NCSS Moment Tensor Solution

Solution reviewed by Peggy

Moment Tensor Diagram

Variance Reduction vs Depth plot
Hypocentral Location:
Event ID73446411
Origin Time2020/08/19 01:59:33
Latitude39.3632
Longitude-123.2478
Depth (TT)7.6 km
Depth (MT; not authoritative)8 km

Magnitudes:
Md3.84 (not authoritative)
Ml3.53 (not authoritative)
Mw3.9 (authoritative)

Principal Axes:
Scale1.0E+21 Dyne-cm
AxisValuePlungeAzimuth
T9.04214.213298.698
N-0.39172.390155.763
P-8.65110.18131.305

Source Composition:
TypePercent
DC91
CLVD9
Iso(null)
Moment Tensor (Aki & Richards Convention):
Mo8.85e+21 Dyne-cm
Mxx-4.189e+21 Dyne-cm
Mxy-7.286e+21 Dyne-cm
Mxz-1.497e+20 Dyne-cm
Myy4.269e+21 Dyne-cm
Myz-2.716e+21 Dyne-cm
Mzz-8.060e+19 Dyne-cm
Variance Reduction80%
Version number2
Solution time2020/08/19 17:09:40 UTC

Best-fit Double Couple Solution
PlaneStrikeRakeDip
NP134516387
NP275373

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