NCSS Moment Tensor Solution

Solution reviewed by Sierra

Moment Tensor Diagram
Hypocentral Location:
Event ID30217691
Origin Time1999/02/18 08:58:42
Latitude38.7800
Longitude-122.7708
Depth (TT)4.3 km
Depth (MT; not authoritative)5 km fixed

Magnitudes:
Ma3.89 (not authoritative)
Md3.43 (not authoritative)
Mw4.15 (authoritative)

Principal Axes:
Scale1.0e+22 Dyne-cm
AxisValuePlungeAzimuth
T2.6552.779290.270
N-1.13974.23030.166
P-1.51515.511199.498

Source Composition:
TypePercent
DC14
CLVD86
Iso(null)
Moment Tensor:
Mo2.08e+22 Dyne-cm
Mxx-9.977e+21 Dyne-cm
Mxy-1.335e+22 Dyne-cm
Mxz1.545e+21 Dyne-cm
Myy2.153e+22 Dyne-cm
Myz-1.382e+21 Dyne-cm
Mzz-1.155e+22 Dyne-cm
Variance Reduction63%
Version number65
Solution time2011/07/19 21:11:17 UTC

Best-fit Double Couple Solution
PlaneStrikeRakeDip
NP1244-1381
NP2336-17177

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