Geological-Seismological Evaluation of Earthquake Hazards at Eisenhower and Snell Locks, Saint Lawrence Seaway, Massena, New York
1991
Krinitzsky, E. L.
The purpose of this investigation is to evaluate the earthquake hazards at Eisenhower and Snell Locks along the Saint Lawrence Seaway and to provide time histories for earthquake ground motion that represent the cyclic shaking that would be felt in the free field on bedrock at the lock sites. Ground motions defined by this study are for use in the engineering-seismic evaluation of the respective locks. This study consists of both a geological and a seismological analysis and consists of the following (1) a geological evaluation of fault activity at the sites and in the region, (2) a seismological appraisal of the historic seismicity in the region, (3) as interpretation of seismic source areas and maximum earthquakes with their prospects for recurrence, and (4) attenuated peak ground motions at the sites with time histories aor analogous cyclic shaking. The area covered by this study are the sites of the Eisenhower and Snell locks near Massena, New York, portions of New England and Canada and the St. Lawrence Valley which has been a source of major historic earthquakes.
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