NCSS Moment Tensor Solution

Solution reviewed by Li-Wei Chen

Moment Tensor Diagram

Variance Reduction vs Depth plot
Hypocentral Location:
Event ID73173775
Origin Time2019/04/29 07:16:08
Latitude39.3477
Longitude-123.2367
Depth (TT)4.0 km
Depth (MT; not authoritative)18 km

Magnitudes:
Md4.14 (not authoritative)
Ml4.17 (not authoritative)
Mw4.32 (authoritative)

Principal Axes:
Scale1.0E+22 Dyne-cm
AxisValuePlungeAzimuth
T3.24621.344296.189
N1.12567.962131.323
P-4.3715.23528.241

Source Composition:
TypePercent
DC49
CLVD51
Iso(null)
Moment Tensor (Aki & Richards Convention):
Mo3.81e+22 Dyne-cm
Mxx-2.747e+22 Dyne-cm
Mxy-3.001e+22 Dyne-cm
Mxz-1.228e+21 Dyne-cm
Myy1.386e+22 Dyne-cm
Myz-8.814e+21 Dyne-cm
Mzz1.361e+22 Dyne-cm
Variance Reduction82%
Version number2
Solution time2019/04/29 07:36:16 UTC

Best-fit Double Couple Solution
PlaneStrikeRakeDip
NP134016179
NP2741271

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