• A technical note on seismic microzonation in the central United States

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      https://www.ias.ac.in/article/fulltext/jess/117/S2/0749-0756

    • Keywords

       

      Earthquake; seismic hazard; strong ground motion; amplification; liquefaction.

    • Abstract

       

      Microzonation is an effort to evaluate and map potential hazards found in an area, urban area in particular, that could be induced by strong ground shaking during an earthquake. These hazards include: ground motion amplification, liquefaction, and slope failure. The microzonation maps, depicting ground-motion amplification, liquefaction, and landslide potentials, can be produced if the ground motion on bedrock (input) and the site conditions are known. These maps, in combination with ground-motion hazard maps (on bedrock), can be used to develop a variety of hazard mitigation strategies such as seismic risk assessment, emergency response and preparedness, and land-use planning. However, these maps have certain limitations that result from the nature of regional mapping, data limitations, generalization, and computer modeling. These microzonations show that when strong ground shaking occurs, damage is more likely to occur, or be more severe, in the higher hazard areas. The zones shown on the hazard maps should not serve as a substitute for site-specific evaluations.

    • Author Affiliations

       

      Zhenming Wang1

      1. Kentucky Geological Survey, University of Kentucky, Lexington, Kentucky 40506, USA.
    • Dates

       
  • Journal of Earth System Science | News

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