NCSS Moment Tensor Solution

Solution reviewed by Peggy

Moment Tensor Diagram

Variance Reduction vs Depth plot
Hypocentral Location:
Event ID21437727
Origin Time2005/02/05 18:43:30
Latitude37.4003
Longitude-121.4833
Depth (TT)7.2 km
Depth (MT; not authoritative)11 km

Magnitudes:
Md4.25 (not authoritative)
Ml4.42 (not authoritative)
Mw4.18 (authoritative)

Principal Axes:
Scale1.0E+22 Dyne-cm
AxisValuePlungeAzimuth
T2.4265.988280.791
N-0.21883.50277.832
P-2.2082.516190.527

Source Composition:
TypePercent
DC82
CLVD18
Iso(null)
Moment Tensor (Aki & Richards Convention):
Mo2.32e+22 Dyne-cm
Mxx-2.046e+22 Dyne-cm
Mxy-8.376e+21 Dyne-cm
Mxz1.372e+21 Dyne-cm
Myy2.239e+22 Dyne-cm
Myz-2.535e+21 Dyne-cm
Mzz-1.932e+21 Dyne-cm
Variance Reduction75%
Version number1
Solution time2009/10/24 06:10:08 UTC

Best-fit Double Couple Solution
PlaneStrikeRakeDip
NP156688
NP232617884

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