NCSS Moment Tensor Solution

Solution reviewed by Dreger

Moment Tensor Diagram

Variance Reduction vs Depth plot
Hypocentral Location:
Event ID40238431
Origin Time2009/06/20 12:32:48
Latitude35.6432
Longitude-120.9513
Depth (TT)5.9 km
Depth (MT; not authoritative)5 km

Magnitudes:
Md4.88 (not authoritative)
Ml4.72 (not authoritative)
Mw4.39 (authoritative)

Principal Axes:
Scale1.0E+22 Dyne-cm
AxisValuePlungeAzimuth
T4.34222.796134.643
N0.75561.291274.762
P-5.09616.49637.493

Source Composition:
TypePercent
DC70
CLVD30
Iso(null)
Moment Tensor (Aki & Richards Convention):
Mo4.72e+22 Dyne-cm
Mxx-1.126e+22 Dyne-cm
Mxy-4.122e+22 Dyne-cm
Mxz-2.164e+22 Dyne-cm
Myy3.050e+21 Dyne-cm
Myz-5.809e+20 Dyne-cm
Mzz8.215e+21 Dyne-cm
Variance Reduction88%
Version number2
Solution time2009/06/20 13:37:12 UTC

Best-fit Double Couple Solution
PlaneStrikeRakeDip
NP12672886
NP217517562

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