NCSS Moment Tensor Solution

Solution reviewed by Fabia Terra

Moment Tensor Diagram

Variance Reduction vs Depth plot
Hypocentral Location:
Event ID73316566
Origin Time2019/12/19 15:30:13
Latitude40.2780
Longitude-124.3572
Depth (TT)21.0 km
Depth (MT; not authoritative)30 km

Magnitudes:
Md3.81 (not authoritative)
Ml3.85 (not authoritative)
Mw4.06 (authoritative)

Principal Axes:
Scale1.0E+22 Dyne-cm
AxisValuePlungeAzimuth
T1.4698.94955.876
N0.12080.762221.405
P-1.5882.271325.519

Source Composition:
TypePercent
DC85
CLVD15
Iso(null)
Moment Tensor (Aki & Richards Convention):
Mo1.53e+22 Dyne-cm
Mxx-6.248e+21 Dyne-cm
Mxy1.407e+22 Dyne-cm
Mxz6.057e+20 Dyne-cm
Myy4.753e+21 Dyne-cm
Myz2.099e+21 Dyne-cm
Mzz1.495e+21 Dyne-cm
Variance Reduction57%
Version number1
Solution time2019/12/19 16:00:47 UTC

Best-fit Double Couple Solution
PlaneStrikeRakeDip
NP1191885
NP210017582

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