BOLETÍN DE LA SOCIEDAD GEOLÓGICA MEXICANA Vol 64, Núm. 2, 2012, P. 215-228 http://dx.doi.org/10.18268/BSGM2012v64n2a7

Aplicabilidad de métodos de evaluación de la amenaza sísmica para un proyecto minero (basada en datos neotectónicos, instrumentales e históricos), Andes Centrales, San Juan, Argentina

 Applicability of evaluation methods of seismic hazard to a mining project (based on neotectonic, instrumental and historic data), Central Andes, San Juan, Argentina

 Luciano Oldecop^1,*, Laura Perucca^2,3

¹ Instituto de Investigaciones Antisísmicas Ing. Aldo Bruschi, Universidad Nacional de San Juan. Av. Libertador General San Martín, 5400 San Juan, Argentina.
² CONICET (Consejo de Investigaciones Científicas y Técnicas).
³ Gabinete de Neotectónica, Instituto de Geología Dr. Emiliano Aparicio - Facultad de Ciencias Exactas, Físicas y Naturales, Universidad Nacional de San Juan. Av. Ignacio de la Roza y Meglioli 1290. 5400 San Juan, Argentina.

^*This email address is being protected from spambots. You need JavaScript enabled to view it.

Abstract

In the present paper the methodology applied for the evaluation of the seismic hazard in a specific site in the Argentinean Andes is presented. Available neotectonic and seismological information was compiled and analyzed as a preliminary work. As it is usual in most South American regions, background seismological and paleosismological information is scarce and, in general, insufficient to completely define the seismic activity in space and time. The definition of seismic design criteria for all the works involved in the project was done with basis on international practice. Both, deterministic and probabilistic analysis methodologies were applied to evaluate the seismic threat in the project's site. The obtained results are compared in this work and the available procedures for selecting the seismic design motions are discussed. Finally, a working criterion is defined and the resulting seismic design motions obtained from the study are presented.

Keywords: seismic hazard, neotectonics, deterministic and probabilistic methods.