NCSS Moment Tensor Solution

Solution reviewed by Taka Taira

Moment Tensor Diagram

Variance Reduction vs Depth plot
Hypocentral Location:
Event ID71475761
Origin Time2010/10/18 15:21:38
Latitude40.7333
Longitude-123.9582
Depth (TT)20.6 km
Depth (MT; not authoritative)21 km

Magnitudes:
Md3.4 (not authoritative)
Ml3.2 (not authoritative)
Mw3.43 (authoritative)

Principal Axes:
Scale1.0E+21 Dyne-cm
AxisValuePlungeAzimuth
T1.7474.91692.962
N0.03847.732188.392
P-1.78541.845358.544

Source Composition:
TypePercent
DC96
CLVD4
Iso(null)
Moment Tensor (Aki & Richards Convention):
Mo1.77e+21 Dyne-cm
Mxx-9.687e+20 Dyne-cm
Mxy-6.190e+19 Dyne-cm
Mxz-9.130e+20 Dyne-cm
Myy1.730e+21 Dyne-cm
Myz1.688e+20 Dyne-cm
Mzz-7.610e+20 Dyne-cm
Variance Reduction51%
Version number1
Solution time2010/10/18 22:21:03 UTC

Best-fit Double Couple Solution
PlaneStrikeRakeDip
NP138-3666
NP2145-15158

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