NCSS Moment Tensor Solution

Solution reviewed by Taka Taira

Moment Tensor Diagram
Hypocentral Location:
Event ID71280691
Origin Time2009/09/13 22:53:17
Latitude37.8548
Longitude-121.7720
Depth (TT)13.8 km
Depth (MT; not authoritative)14 km fixed

Magnitudes:
Md3.21 (not authoritative)
Ml3.13 (not authoritative)
Mw3.21 (authoritative)

Principal Axes:
Scale1.0E+20 Dyne-cm
AxisValuePlungeAzimuth
T7.6101.150109.716
N1.14676.27315.002
P-8.75613.677199.996

Source Composition:
TypePercent
DC74
CLVD26
Iso(null)
Moment Tensor (Aki & Richards Convention):
Mo8.18e+20 Dyne-cm
Mxx-6.374e+20 Dyne-cm
Mxy-5.056e+20 Dyne-cm
Mxz2.094e+20 Dyne-cm
Myy5.779e+20 Dyne-cm
Myz9.000e+19 Dyne-cm
Mzz5.950e+19 Dyne-cm
Variance Reduction46%
Version number2
Solution time2009/09/14 23:33:45 UTC

Best-fit Double Couple Solution
PlaneStrikeRakeDip
NP1336-16981
NP2244-980

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