Mapa preliminar de períodos predominantes del suelo en Puerto Príncipe (Haití) a partir de medidas de ruido ambiental.

Navarro Bernal, Manuel and Enomoto, Takahisa and Benito Oterino, Belen and Belizaire, Dwinel and Navarro, D. and García-Jerez, A. and Dorfeuille, Jean Michel Haendel (2012). Mapa preliminar de períodos predominantes del suelo en Puerto Príncipe (Haití) a partir de medidas de ruido ambiental.. In: "7ª Asamblea Hispano-Portuguesa de Geodesia y Geofísica.", 25-28 de junio, 2012, San Sebastián, España.

Description

Title: Mapa preliminar de períodos predominantes del suelo en Puerto Príncipe (Haití) a partir de medidas de ruido ambiental.
Author/s:
  • Navarro Bernal, Manuel
  • Enomoto, Takahisa
  • Benito Oterino, Belen
  • Belizaire, Dwinel
  • Navarro, D.
  • García-Jerez, A.
  • Dorfeuille, Jean Michel Haendel
Item Type: Presentation at Congress or Conference (Poster)
Event Title: 7ª Asamblea Hispano-Portuguesa de Geodesia y Geofísica.
Event Dates: 25-28 de junio, 2012
Event Location: San Sebastián, España
Title of Book: 7ª Asamblea Hispano-Portuguesa de Geodesia y Geofísica.
Date: June 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

The 2010 Haiti earthquake, occurred on January 12th at 16:53:09 local time (21:53:09 UTC) with epicentral distance of 15 km from the capital Port au Prince, MW 7.0 and 13 km hypocenter deep, was the strongest event in the area since happened in 1770. The maximum macroseismic intensity was estimated as X (MMI scale). The aim of this research is to obtain a preliminary zonation of Port-au-Prince in terms of predominant resonance periods of ground. A total of 36 short-period ambient noise records have been carried out on a grid of about 500x500m. H/V spectral ratio method (HVSR) has been applied to determine the predominant period at each point. The lowest values (<0.2s) predominate in the southern part of the city, composed by Miocene conglomerates, while highest values (> 0.45s) correspond to the center and western parts, composed of Pleistocene-Holocene alluvial deposits and anthropogenic land reclaimed from the sea. We have determined the ground VS30 structure inside National Palace garden, using simultaneous ambient noise measurements. An array made up of 6 sensors were used, with 5 of them uniformly distributed along a circumference and a sixth one placed in its centre. The records were analyzed by using the spatial autocorrelation method (SPAC). The VS 30 value obtained was 331m/sec, in good agreement with the average values obtained for this area by other authors, using prospecting techniques.

More information

Item ID: 21847
DC Identifier: http://oa.upm.es/21847/
OAI Identifier: oai:oa.upm.es:21847
Deposited by: CU Maria Belén Benito Oterino
Deposited on: 03 Dec 2013 12:45
Last Modified: 03 Apr 2017 06:41
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