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Ground motion values obtained for the 27 July 1980 Sharpsburg, Kentucky, earthquake

DEPARTMENT OF GEOLOGY UNIVERSITY OF KENTUCKY, LEXINGTON, KENTUCKY 40506

Abstract

Free-field, vector-sum peak particle velocity recordings of the 27 July 1980 Sharpsburg, Kentucky, earthquake result in the following equations

and

where V_{R(1 Hz)} refers to the resultant vector-sum peak particle velocity at 1 Hz, V_{R(5 Hz)} refers to the resultant vector-sum peak particle velocity at 5 Hz, m_bLg is the 1-Hz Lg magnitude commonly used in the Eastern United States, and R is the epicentral distance in kilometers. These equations are intended for the prediction of the maximum particle velocity associated with Lg waves in the Eastern United States in the far-field region of an earthquake, on competent foundation materials.

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