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Communication Dans Un Congrès Année : 2009

Standard spectral an d H/V ratios of seismic data in Beirut

Marleine Brax
  • Fonction : Auteur
Pierre-Yves Bard
Anne-Marie Duval
Alexandre Sursock
  • Fonction : Auteur
  • PersonId : 852736
Rachid Jomaa
  • Fonction : Auteur
Etienne Bertrand
  • Fonction : Auteur
  • PersonId : 883313
C. Allam
  • Fonction : Auteur
W. Nohra
  • Fonction : Auteur

Résumé

Historically, Beirut has been destroyed several times by earthquakes. The last devastating one was the 551 A.D. earthquake, followed by a tsunami, causing the death of 30.000 people.In the last 10 years, many research studies have been carried outto better understand the tectonic context of Lebanon and mapping active faults. No site effects studies had ever been conducted in Lebanon despite the fact that peoplefrom different regions are reporting feeling seismic vibrationsfor moderate earthquakes located 400 km away. Trying to better understand this phenomenon in Beirut, a seismological experiment was conducted in Beirut in 2006 with the aimto evaluate site response at 10 sites. During 5 months, ten Hathor3 stations recording continuously connected to Lennartz 5s seismometers were installed on different geological structures, representing almost all the soil types found in Beirut. Two of the stations were installed on rocks (cenomanian and miocene structures) and were considered as reference sites.In total, 82 earthquakes were recorded including local (2.5
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hal-03589647 , version 1 (25-02-2022)

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  • HAL Id : hal-03589647 , version 1

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Marleine Brax, Pierre-Yves Bard, Anne-Marie Duval, Alexandre Sursock, Rachid Jomaa, et al.. Standard spectral an d H/V ratios of seismic data in Beirut. International Conference Provence 2009, Seismic risk in moderate seismicity area: from hazard to vulnerability, Jul 2009, Aix en Provence, France. ⟨hal-03589647⟩
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