NCSS Moment Tensor Solution

Solution reviewed by Sevan Adourian

Moment Tensor Diagram
Hypocentral Location:
Event ID73390316
Origin Time2020/05/19 15:58:32
Latitude40.4560
Longitude-124.5552
Depth (TT)23.1 km
Depth (MT; not authoritative)24 km fixed

Magnitudes:
Md3.99 (not authoritative)
Ml4.13 (not authoritative)
Mw4.17 (authoritative)

Principal Axes:
Scale1.0E+22 Dyne-cm
AxisValuePlungeAzimuth
T2.2602.11486.245
N0.03483.898336.045
P-2.2945.722176.457

Source Composition:
TypePercent
DC97
CLVD3
Iso(null)
Moment Tensor (Aki & Richards Convention):
Mo2.28e+22 Dyne-cm
Mxx-2.253e+22 Dyne-cm
Mxy2.874e+21 Dyne-cm
Mxz2.359e+21 Dyne-cm
Myy2.239e+22 Dyne-cm
Myz6.761e+20 Dyne-cm
Mzz1.400e+20 Dyne-cm
Variance Reduction86%
Version number2
Solution time2020/05/19 18:14:48 UTC

Best-fit Double Couple Solution
PlaneStrikeRakeDip
NP1311-17487
NP2221-384

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