Generalized seismogenic fault-source model

 

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Generalized three-dimensional representation of a seismogenic fault-source model (Haller and Basili, 2011). Bold red line is the top edge of the fault and orange-shaded dipping surface represents the seismogenic fault plane. The red arrow on the fault plane represents the direction of slip.

SeismogenicFaultModel

The geometry is rather simple for crustal faults, basically, a seismogenic fault is represented as a dipping plane constrained between two orizontal lines. Subduction interfaces instead can have a more complex geometry.

The behavior parameters determines the sense of movement of the fault (rake), the average offset over time (slip rate), the size or sizes of the earthquakes the fault can generate (earthquake magnitude) and how often they are generated (activity rate).

 

References

  • Haller K. M. and R. Basili (2011), Developing seismogenic source models based on geologic fault data, Seismological Research Letters, 82(4), 519-525, doi: 10.1785/gssrl.82.4.519.

 



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