NCSS Moment Tensor Solution

Solution reviewed by Peggy

Moment Tensor Diagram

Variance Reduction vs Depth plot
Hypocentral Location:
Event ID21397331
Origin Time2004/09/21 05:51:43
Latitude37.9987
Longitude-118.7143
Depth (TT)4.7 km
Depth (MT; not authoritative)8 km

Magnitudes:
Md3.66 (not authoritative)
Ml3.72 (not authoritative)
Mw3.61 (authoritative)

Principal Axes:
Scale1.0E+21 Dyne-cm
AxisValuePlungeAzimuth
T2.63736.643302.792
N1.15250.63097.822
P-3.78912.407203.374

Source Composition:
TypePercent
DC39
CLVD61
Iso(null)
Moment Tensor (Aki & Richards Convention):
Mo3.21e+21 Dyne-cm
Mxx-2.539e+21 Dyne-cm
Mxy-2.151e+21 Dyne-cm
Mxz1.337e+21 Dyne-cm
Myy1.086e+21 Dyne-cm
Myz-1.862e+20 Dyne-cm
Mzz1.453e+21 Dyne-cm
Variance Reduction79%
Version number1
Solution time2009/10/24 03:58:01 UTC

Best-fit Double Couple Solution
PlaneStrikeRakeDip
NP1783774
NP233616155

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