Earthquake-induced liquefaction potential in western Puerto Rico using GIS technology
Emir José Macari, Laureano R. Hoyos, 2005. "Earthquake-induced liquefaction potential in western Puerto Rico using GIS technology", Active Tectonics and Seismic Hazards of Puerto Rico, the Virgin Islands, and Offshore Areas, Paul Mann
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Seismic hazard and risk analyses play a major role in identifying the potential consequences of an earthquake both in relation to existing facilities as well as in the planning and location of new structures. Such analyses must include consideration of several geological and geotechnical hazards and thus a large number of input factors are required. The resulting databases may be quite large and require an appropriate environment to optimize the risk evaluation procedures. Advances in computer-based Geographic Information Systems (GIS) have provided a technology which is ideally suited to fulfill the needs of earthquake hazard analyses. The overall objective of this study was to integrate a variety of analysis procedures for identifying and mapping geotechnical hazards through the use of GIS technology. This effort complements the comprehensive GIS database developed by the U.S. Geological Survey in Puerto Rico and will benefit emergency planning agencies, private industry, engineers, architects, and insurance agencies, among many others. This study was a pilot program that deals with the development of a GIS database of geotechnical properties for western Puerto Rico and the evaluation of liquefaction potential based on the Liquefaction Potential Index (LPI) method. The results are preliminary in nature and more detailed comprehensive studies are needed to accurately assess the liquefaction potential in western Puerto Rico.