NCSS Moment Tensor Solution

Solution reviewed by Jennifer

Moment Tensor Diagram
Hypocentral Location:
Event ID21078341
Origin Time2000/01/18 23:26:01
Latitude38.7515
Longitude-122.9135
Depth (TT)7.5 km
Depth (MT; not authoritative)5 km fixed

Magnitudes:
Ma4.21 (not authoritative)
Md4 (not authoritative)
Ml4.22 (not authoritative)
Mw4.19 (authoritative)

Principal Axes:
Scale1.0e+22 Dyne-cm
AxisValuePlungeAzimuth
T2.3769.745318.168
N0.00359.97265.454
P-2.37928.094222.908

Source Composition:
TypePercent
DC100
CLVD0
Iso(null)
Moment Tensor:
Mo2.38e+22 Dyne-cm
Mxx2.883e+21 Dyne-cm
Mxy-2.066e+22 Dyne-cm
Mxz1.025e+22 Dyne-cm
Myy1.692e+21 Dyne-cm
Myz4.052e+21 Dyne-cm
Mzz-4.575e+21 Dyne-cm
Variance Reduction82%
Version number2
Solution time2011/07/31 04:33:56 UTC

Best-fit Double Couple Solution
PlaneStrikeRakeDip
NP1268-2878
NP24-16663

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