NCSS Moment Tensor Solution

Solution reviewed by Jennifer Taggart

Moment Tensor Diagram
Hypocentral Location:
Event ID73333256
Origin Time2020/01/29 12:30:50
Latitude39.2677
Longitude-123.2220
Depth (TT)6.4 km
Depth (MT; not authoritative)5 km fixed

Magnitudes:
Md3.16 (not authoritative)
Ml3.45 (not authoritative)
Mw3.47 (authoritative)

Principal Axes:
Scale1.0E+21 Dyne-cm
AxisValuePlungeAzimuth
T2.06213.314289.873
N-0.14862.295173.086
P-1.91423.82025.870

Source Composition:
TypePercent
DC86
CLVD14
Iso(null)
Moment Tensor (Aki & Richards Convention):
Mo1.99e+21 Dyne-cm
Mxx-1.102e+21 Dyne-cm
Mxy-1.249e+21 Dyne-cm
Mxz-4.184e+20 Dyne-cm
Myy1.422e+21 Dyne-cm
Myz-7.504e+20 Dyne-cm
Mzz-3.191e+20 Dyne-cm
Variance Reduction64%
Version number1
Solution time2020/01/31 22:09:45 UTC

Best-fit Double Couple Solution
PlaneStrikeRakeDip
NP1159-15383
NP266-863

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