1. Name :  Andrés Prieto Ramírez

2. Organization: Mayoralty of Santiago de Cali - Administrative Department of Municipal Planning

3. Course: 2000 Sm

4. Title:  SEISMIC HAZARD IN  CALI -　COLOMBIA : A REVIEW

5. Abstract: S

         Cali is exposed to the action of diverse seismic sources, since it is located in a high dynamic and complex tectonic environment determined by the convergence of two tectonic plates: Nazca and South America. It was settled over a diverse kind of soils (rocks, alluvial cones, slope deposits, alluvial plain deposits) which have large differences in their physical and mechanical characteristics. These features result in a high level of seismic hazard for Cali.  

         Several investigations have been done in Cali about the main incidence factors over seismic hazard and risk. Most of these studies and investigations have been done by the Seismological Observatory of South West (OSSO) of the Valle University. The related studies in the rest of the country have been done by the Javeriana University, INGEOMINAS (Colombian Institute of Investigations in Geoscience, Mining and Chemist), AIS (Colombian Association of Seismic Engineering) and University of Los Andes, among others.

This document shows the present knowledge on the most prominent aspects of the seismic hazard in Cali. The information has been taken of the existing studies.