An evaluation of seismic hazard in La Hispaniola, after the 2010 Haiti earthquake

Benito Oterino, Belen and Belizaire, Dwinel and Torres Fernández, Yolanda and Martínez Díaz, José Jesús and Huérfano, Víctor and Polanco, Eugenio and Garcia, R. and González‐Crende, Pilar and Serna Martínez, Ana Rita and Zevallos, F. (2012). An evaluation of seismic hazard in La Hispaniola, after the 2010 Haiti earthquake. In: "XXXIII General Assembly European Seismological Commission", Agosto, 2012, Moscú, Rusia.

Description

Title: An evaluation of seismic hazard in La Hispaniola, after the 2010 Haiti earthquake
Author/s:
  • Benito Oterino, Belen
  • Belizaire, Dwinel
  • Torres Fernández, Yolanda
  • Martínez Díaz, José Jesús
  • Huérfano, Víctor
  • Polanco, Eugenio
  • Garcia, R.
  • González‐Crende, Pilar
  • Serna Martínez, Ana Rita
  • Zevallos, F.
Item Type: Presentation at Congress or Conference (Poster)
Event Title: XXXIII General Assembly European Seismological Commission
Event Dates: Agosto, 2012
Event Location: Moscú, Rusia
Title of Book: XXXIII General Assembly European Seismological Commission
Date: August 2012
Subjects:
Faculty: E.T.S.I. en Topografía, Geodesia y Cartografía (UPM)
Department: Ingeniería Topográfica y Cartografía [hasta 2014]
UPM's Research Group: Grupo de Investigación en Ingeniería Sísmica (GIIS) de la ETSITGC-UPM
Creative Commons Licenses: Recognition - Non commercial - Share

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Abstract

An evaluation of the seismic hazard in La Hispaniola Island has been carried out, as part of the cooperative project SISMO-HAITI, supported by the Technical University of Madrid (UPM) and developed by several Spanish Universities, the National Observatory of Environment and Vulnerability) ONEV of Haiti, and with contributions from the Puerto Rico Seismic Network (PRSN) and University Seismological Institute of Dominican Republic (ISU). The study was aimed at obtaining results suitable for seismic design purposes. It started with the elaboration of a seismic catalogue for the Hispaniola Island, requiring an exhaustive revision of data reported by more than 20 seismic agencies, apart from these from the PRSN and ISU. The final catalogue contains 96 historical earthquakes and 1690 instrumental events, and it was homogenized to moment magnitude, Mw. Seismotectonic models proposed for the region were revised and a new regional zonation was proposed, taking into account geological andtectonic data, seismicity, focal mechanisms, and GPS observations. In parallel, attenuation models for subduction and crustal zones were revised in previous projects and the most suitable for the Caribbean plate were selected. Then, a seismic hazard analysis was developed in terms of peak ground acceleration, PGA, and spectral accelerations, SA (T), for periods of 0.1, 0.2, 0.5, 1 and 2s, using the Probabilistic Seismic Hazard Assessment (PSHA) methodology. As a result, different hazard maps were obtained for the quoted parameters, together with Uniform Hazard Spectra for Port au Prince and the main cities in the country. Hazard deaggregation was also carried out in these towns, for the target motion given by the PGA and SA (1s) obtained for return periods of 475, 975 and 2475 years. Therefore, the controlling earthquakes for short- and long-period target motions were derived. This study was started a few months after the 2010 earthquake, as a response to an aid request from the Haitian government to the UPM, and the results are available for the definition of the first building code in Haiti.

More information

Item ID: 21850
DC Identifier: http://oa.upm.es/21850/
OAI Identifier: oai:oa.upm.es:21850
Deposited by: CU Maria Belén Benito Oterino
Deposited on: 03 Dec 2013 12:02
Last Modified: 21 Apr 2016 12:38
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