NCSS Moment Tensor Solution

Solution reviewed by Sierra

Moment Tensor Diagram

Variance Reduction vs Depth plot
Hypocentral Location:
Event ID73551855
Origin Time2021/04/20 02:39:05
Latitude39.5135
Longitude-122.0262
Depth (TT)20.8 km
Depth (MT; not authoritative)24 km

Magnitudes:
Md3.86 (not authoritative)
Ml3.69 (not authoritative)
Mw3.82 (authoritative)

Principal Axes:
Scale1.0E+21 Dyne-cm
AxisValuePlungeAzimuth
T6.93217.971255.804
N-0.65854.955138.257
P-6.27428.965356.147

Source Composition:
TypePercent
DC81
CLVD19
Iso(null)
Moment Tensor (Aki & Richards Convention):
Mo6.60e+21 Dyne-cm
Mxx-4.525e+21 Dyne-cm
Mxy1.921e+21 Dyne-cm
Mxz-2.920e+21 Dyne-cm
Myy5.777e+21 Dyne-cm
Myz-2.000e+21 Dyne-cm
Mzz-1.253e+21 Dyne-cm
Variance Reduction74%
Version number1
Solution time2021/04/20 04:20:13 UTC

Best-fit Double Couple Solution
PlaneStrikeRakeDip
NP1128-14683
NP233-956

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