Scaling of intraplate earthquake recurrence interval with fault length and implications for seismic hazard assessment

Details Scaling of intraplate earthquake recurrence interval with fault length and implications for seismic hazard assessment Scaling of intraplate earthquake recurrence interval with fault length and implications for seismic hazard assessment

Dec 1994

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994georl..21.2637m&link_type=abstract

Geophysical Research Letters (ISSN 0094-8276), vol. 21, no. 24, p. 2637-2640

Mathematics

Logic

4

Assessments, Calibrating, Earthquakes, Geological Faults, Hazards, Plates (Tectonics), Seismology, Earth Crust, Predictions, Statistical Analysis

Scientific paper

Consensus indicates that faults follow power-law scaling, although significant uncertainty remains about the values of important parameters. Combining these scaling relationships with power-law scaling relationships for earthquakes suggests that intraplate earthquake recurrence interval scales with fault length. Regional scaling data may be locally calibrated to yield a site-specific seismic hazard assessment tool. Scaling data from small faults (those that do not span the seismogenic layer) suggest that recurrence interval varies as a negative power of fault length. Due to uncertainties regarding the recently recognized changes in scaling for large earthquakes, it is unclear whether recurrence interval varies as a negative or positive power of fault length for large fauts (those that span the seismogenic layer). This question is of critical importance for seismic hazard assessment.

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