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Geophysical Research Abstracts, Vol. 7, 08939, 2005 SRef-ID: 1607-7962/gra/EGU05-A-08939
 

Summary: Geophysical Research Abstracts, Vol. 7, 08939, 2005
SRef-ID: 1607-7962/gra/EGU05-A-08939
© European Geosciences Union 2005
Geophysical investigations and modeling of seismic
response for a seismic microzoning study in Caracas,
Venezuela
M. Schmitz (1), V. Rocabado (1), J.-P. Ampuero (2), H. Rendón (1), J.-P. Vilotte (2),
J.J. Hernández (1), C. Cornou (3), J. Alvarellos (4), F.A. Audemard (1)
(1) FUNVISIS, Caracas, Venezuela, www.funvisis.org.ve, (2) IPG, Paris, France, (3)
LGIT, Grenoble, France, (4) PDVSA-INTEVEP, Los Teques, Venezuela.
One of the most important natural hazards that threatens Caracas, the capital city of
Venezuela, is the seismic hazard, due to its location in the plate boundary zone be-
tween the South America and the Caribbean plates. There is historic evidence for
several destructive earthquakes in Caracas since 1641, being the most recent one the
1967 Caracas earthquake. This magnitude 6.5 earthquake which occurred some 25 km
northwest of Caracas generated heavy damage in distinct zones of the city, thus being
the most intensely studied earthquake in Venezuela. Damage investigations of build-
ings, including soil and building dynamical characteristics, and the earthquake engi-
neering characteristics of the deposits were performed in detail following the earth-
quake. Sediment thickness in excess of 300 m and related soil-structure interactions

  

Source: Ampuero, Jean Paul - Division of Geological and Planetary Sciences, California Institute of Technology

 

Collections: Geosciences