State-of-the-Art for Assessing Earthquake Hazards in the United States. Report 25. Parameters for Specifying Intensity-Related Earthquake Ground Motions.

Abstract

A set of 12 charts are presented that relate Modified Mercalli intensity units to peak horizontal acceleration, velocity and duration for near field and far field locations, hard and soft sites, and sizes of earthquakes. Also shown is the mean, mean plus one standard deviation, mean plus two standard deviations, and the highest observed values. Ratios of vertical to horizontal motions and predominant periods are provided. These charts are for use with known fault sources and for floating earthquakes in zones where there are no identifiable causative faults. The procedure provides parameters for shaping time histories to be used for dynamic analyses. Keywords: Earthquake ground motions.

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Document Details

Document Type
Technical Report
Publication Date
Sep 01, 1987
Accession Number
ADA188230

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  • E. L. Krinitzsky
  • Frank K. Chang

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