NCSS Moment Tensor Solution

Solution reviewed by Taka Taira

Moment Tensor Diagram
Hypocentral Location:
Event ID71439771
Origin Time2010/07/31 01:31:57
Latitude39.3138
Longitude-122.8145
Depth (TT)9.9 km
Depth (MT; not authoritative)8 km fixed

Magnitudes:
Md2.84 (not authoritative)
Ml2.8 (not authoritative)
Mw3.01 (authoritative)

Principal Axes:
Scale1.0E+20 Dyne-cm
AxisValuePlungeAzimuth
T4.12016.445133.790
N-0.14341.915239.156
P-3.97643.48727.532

Source Composition:
TypePercent
DC93
CLVD7
Iso(null)
Moment Tensor (Aki & Richards Convention):
Mo4.05e+20 Dyne-cm
Mxx1.480e+19 Dyne-cm
Mxy-2.786e+20 Dyne-cm
Mxz-2.498e+20 Dyne-cm
Myy1.469e+20 Dyne-cm
Myz-4.900e+18 Dyne-cm
Mzz-1.617e+20 Dyne-cm
Variance Reduction48%
Version number1
Solution time2010/07/31 04:27:47 UTC

Best-fit Double Couple Solution
PlaneStrikeRakeDip
NP175-4673
NP2181-15747

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