Articles | Volume 18, issue 11
Research article
30 Oct 2018
Research article |  | 30 Oct 2018

Approach for combining fault and area sources in seismic hazard assessment: application in south-eastern Spain

Alicia Rivas-Medina, Belen Benito, and Jorge Miguel Gaspar-Escribano

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Cited articles

Akinci, A. and Pace, B.: Effect of Fault Parameter Uncertainties on PSHA explored by Monte Carlo Simulations: A case study for southern Apennines, Italy, in: AGU Fall Meeting Abstracts, 11–15 December 2017, New Orleans, 2017. 
Akinci, A., Malagnini, L., and Sabetta, F.: Characteristics of the strong ground motions from the 6 April 2009 L'Aquila earthquake, Italy, Soil Dynam. Earthq. Eng., 30, 320–335, 2010. 
Anderson, J. G. and Luco, J. E.: Consequences of slip rate constraints on earthquake occurrence relations, B. Seismol. Soc. Am., 73, 471–496, 1983. 
Argus, D. F., Gordon, R. G., DeMets, C., and Stein, S.: Closure of the Africa–Eurasia–North America plate motion circuit and tectonics of the Gloria Fault, J. Geophys. Res., 94, 5585–5602, 1989. 
Basili, R., Tiberti, M. M., Kastelic, V., Romano, F., Piatanesi, A., Selva, J., and Lorito, S.: Integrating geologic fault data into tsunami hazard studies, Nat. Hazards Earth Syst. Sci., 13, 1025–1050,, 2013. 
Short summary
We present an approach for seismic hazard assessment that considers a hybrid source model composed of faults and zones containing the remaining seismicity. The seismic-moment rate is used to distribute seismic potential, avoiding double counting. The approach is applied in SE Spain, a region of low-to-moderate seismicity. Results show a concentration of expected accelerations around fault traces using the hybrid approach, which is not appreciated in the classic approach using zones exclusively.
Final-revised paper