Seismic Hazard in Latin America and the Caribbean - Volume 5 - Final Report

The table of contents for this item can be shared with the requester. The requester may then choose one chapter, up to 10% of the item, as per the Fair Dealing provision of the Canadian Copyright ActWe present new seismic hazard maps for the Caribbean region. The data base on which the maps are based is a revised earthquake catalogue with uniform moment magnitudes covering the entire Latin American and Caribbean region. The method of assessment used is the Historic Parametric which we describe in detail in companion reports. The attenuation relationships used have been selected from a large number of existing relationships which we consider most appropriate for this region. The results expressed as the peak ground acceleration (PGA) with 90% probability of not being exceeded within any fifty-year period. On land areas within the Caribbean this quantity varies from less than 16% to more than 32% of gravity. The highest values apply to the eastern half of the island of Hispaniola, most of the Leeward Islands and Trinidad. The lowest values are found over the central Lesser Antilles and western Jamaica, but there is nowhere within this region where the level of seismic hazard can be considered to be negligible. More detailed maps are available on request