Determinación de Zonas de Peligrosidad Sísmica en la cuenca del río Jama con el uso de perfiles de respuesta del suelo

Abstract

This research is motivated by the need to get zoning maps that allow identifying areas of greater seismic hazard for the Jama river basin; For that goal has been used the type of information easy to verify which is normally available for a watershed, information through the use of public geographic information systems and field works of individual projects of this study area. In the characterization of this segment of the Jama River basin was evaluated the influence of the geological-geotechnical, topographic, geomorphological, geotechnical parameters and general hydrology conditions. For the identification of zones of equal seismic hazard in the Jama river basin, zoning thematic maps were generated, using the ArcGis geographic information software, which allowed us to compare the geology and geomorphology of the basin in order to delimit zones of similar seismic response. The seismic response profiles were analyzed by the Grade 2 Detailed Zoning (classified according to the Ecuadorian Construction Standard year 2015), with the support of geophysical tests collected in the geomorphological units identified, using the average shear wave velocity of the soil (Vs). The result of this investigation allowed to establish for each zone a type of soil profile and an elastic spectrum in accelerations for the design of earthquake resistant structures, with the purpose of providing security to the inhabitants for the development of future infrastructures.