Seismic Hazards for Memphis Water Delivery Systems

by Howard H. M. Hwang, Memphis State Univ, Memphis, United States,



Document Type: Proceeding Paper

Part of: Lifeline Earthquake Engineering

Abstract: Estimation of seismic hazards is the first essential task in performing the seismic risk assessment of a municipal water delivery system. This paper presents the evaluation of seismic hazards in Memphis and Shelby County, Tennessee. The peak horizontal bedrock accelerations resulting from large New Madrid earthquakes were estimated and presented in contour maps. In addition, about 8500 existing boring logs from various sources were collected, compiled, and analyzed to reveal the subsurface conditions for the entire Memphis area. The soil effects on earthquake ground motions and the liquefaction potential in Memphis and Shelby County were also evaluated. The results of the seismic hazard analysis can be used to evaluate the vulnerability of the water delivery system.

Subject Headings: Water supply systems | Seismic effects | Seismic tests | Geohazards | Water pipelines | Earthquakes | Soil liquefaction | Municipal water | North America | Tennessee | United States | Memphis | Spain | Europe | Madrid

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