Ground Motion and Air Overpressure Study at the Naval Surface Warfare Center, Crane, Indiana

This report provides documentation for and presents an analysis of a seismic attenuation and air overpressure study at the Naval Surface Warfare Center, Crane, Indiana. The investigation consisted of measuring peak particle velocities and peak air overpressures along two radials (N40 deg E and S40 deg W. Each radial consisted of four to five monitoring stations recording vertical, radial, and transverse ground motions in addition to air overpressures. Data were recorded from 24 August through 5 September 1992, with 3084 time histories being recorded. From the data, ground motion and air overpressure attenuation curves were developed from which predictions could be made given the size of the explosion and the distance from the explosion. Based on the results obtained, the following attenuation curves are proposed. Air overpressure, Peak particle velocity, Ground motions, Regression.