NCSS Moment Tensor Solution

Solution reviewed by Taka Taira

Moment Tensor Diagram
Hypocentral Location:
Event ID316220
Origin Time1992/09/19 23:04:47
Latitude38.8600
Longitude-122.7918
Depth (TT)3.9 km
Depth (MT; not authoritative)3.5 km fixed

Magnitudes:
Ma4.35 (not authoritative)
Md4.38 (not authoritative)
Mw4.47 (authoritative)

Principal Axes:
Scale10**22 Dyne-cm
AxisValuePlungeAzimuth
T7.6925303
N-2.887633
P-4.80583172

Source Composition:
TypePercent
DC25
CLVD75
Iso(null)
Moment Tensor:
Mo6.25e+22 Dyne-cm
Mxx1.220e+21 Dyne-cm
Mxy-4.759e+22 Dyne-cm
Mxz7.109e+21 Dyne-cm
Myy4.577e+22 Dyne-cm
Myz-7.695e+21 Dyne-cm
Mzz-4.699e+22 Dyne-cm
Variance Reduction66%
Version number1
Solution time2011/05/24 23:24:58 UTC

Best-fit Double Couple Solution
PlaneStrikeRakeDip
NP1218-8350
NP226-9941

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