NCSS Moment Tensor Solution

Solution reviewed by Taka Taira

Moment Tensor Diagram
Hypocentral Location:
Event ID337179
Origin Time1993/02/15 18:04:24
Latitude38.7865
Longitude-122.7590
Depth (TT)1.0 km
Depth (MT; not authoritative)1.5 km fixed

Magnitudes:
Ma3.43 (not authoritative)
Md3.71 (not authoritative)
Mw3.88 (authoritative)

Principal Axes:
Scale1.0E+21 Dyne-cm
AxisValuePlungeAzimuth
T8.8511.612114.464
N-1.28976.94017.496
P-7.56212.957204.835

Source Composition:
TypePercent
DC71
CLVD29
Iso(null)
Moment Tensor (Aki & Richards Convention):
Mo8.21e+21 Dyne-cm
Mxx-4.458e+21 Dyne-cm
Mxy-6.090e+21 Dyne-cm
Mxz1.126e+21 Dyne-cm
Myy6.055e+21 Dyne-cm
Myz8.353e+20 Dyne-cm
Mzz-1.596e+21 Dyne-cm
Variance Reduction74%
Version number1
Solution time2011/08/02 17:01:27 UTC

Best-fit Double Couple Solution
PlaneStrikeRakeDip
NP1340-17082
NP2249-880

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