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Effect of time dependence on probabilistic seismic-hazard maps and deaggregation for the central Apennines, Italy

Bulletin of the Seismological Society of America

By:
, , , , ,
DOI: 10.1785/0120080053

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Abstract

We produce probabilistic seismic-hazard assessments for the central Apennines, Italy, using time-dependent models that are characterized using a Brownian passage time recurrence model. Using aperiodicity parameters, ?? of 0.3, 0.5, and 0.7, we examine the sensitivity of the probabilistic ground motion and its deaggregation to these parameters. For the seismic source model we incorporate both smoothed historical seismicity over the area and geological information on faults. We use the maximum magnitude model for the fault sources together with a uniform probability of rupture along the fault (floating fault model) to model fictitious faults to account for earthquakes that cannot be correlated with known geologic structural segmentation.

Additional Publication Details

Publication type:
Article
Publication Subtype:
Journal Article
Title:
Effect of time dependence on probabilistic seismic-hazard maps and deaggregation for the central Apennines, Italy
Series title:
Bulletin of the Seismological Society of America
DOI:
10.1785/0120080053
Volume
99
Issue:
2 A
Year Published:
2009
Language:
English
Larger Work Type:
Article
Larger Work Subtype:
Journal Article
Larger Work Title:
Bulletin of the Seismological Society of America
First page:
585
Last page:
610
Number of Pages:
26