Geología para el estudio de microzonación sísmica en Santiago de los Caballeros, República Dominicana

Abstract

After the Haiti quake of 2010 an initiative started to better understand shaking effects in the city of Santiago de los Caballeros (Dominican Republic); a city that was devastated after an earthquake and rebuilt in a new site in 1562. It is well known that damage because of an earthquake occurs associated to a number of factors, ground acceleration is amid them. Within the range of a few kilometers, the effect of distance attenuation might be far less relevant than the effect of varying properties of soils. This paper gathers results obtained from the seismic hazard and microzonation studies developed in the city of Santiago: i) quantification of regional seismic hazard dominated by the Septentrional fault, ii) a new geological mapping of superficial formations, and iii) mapping of zones of homogeneous seismic response and liquefaction susceptibilit