%0 Journal Article
%T A preliminary study of seismic microzonation of Concepci¨®n based on microtremors, geology and damages patterns
%A Leyton
%A Felipe
%A Montalva
%A Gonzalo
%A Ram¨ªrez
%A Paola
%J Obras y proyectos
%D 2012
%I Scientific Electronic Library Online
%R 10.4067/S0718-28132012000100004
%X we perform microtremors measurements at concepci¨®n and compute the predominantfrequency using horizontal-to-vertical spectral ratio (hvsr). we compare these results with the surface geology and several geotechnical surveys existing in the region, enabling a general characterization of the area. we present and complement these results with observations of damage produced by the mw 8.8 maule 2010 earthquake. preliminary results show the presence of fine-grained materials in the area characterized by very low predominant frequency (lower than 1.5 hz), which might explain the extensive damage observed at concepci¨®n and surroundings.
%K seismic microzonation
%K concepci¨®n geology
%K microtremors' hvsr.
%U http://www.scielo.cl/scielo.php?script=sci_abstract&pid=S0718-28132012000100004&lng=en&nrm=iso&tlng=en