Free-Field Particle Velocity Recordings of the January 31, 1986 Northeastern Ohio Earthquake

Abstract

The January 31, 1986 earthquake in northeastern Ohio triggered eight biast monitors in the coal fields of southeastern Ohio and one in western Pennsylvania at epicentral distances of 128 to 297 kilometers from the earthquake. Recordings of the free-field ground motions exhibit predominant frequencies of 1 to 10 Hz, and are consistent with the ground motion model proposed by Nuttli and Herrmann (1984) for the propagation of Lg waves.