This publication summarizes data for earthquakes that occurred in the 50 states and Puerto Rico during 1985. Descriptions of individual earthquakes include hypocenters, magnitudes, intensities, and damages. The report also contains results from regional networks and data recorded by strong-motion seismographs.

A reconstruction of the Poison Creek anticline, a very large amplitude fold now broken by normal faults, fold is in the hangingwall of a major thrust fault.

A reconstruction of the Poison Creek anticline, a very large amplitude fold now broken by normal faults, fold is in the hangingwall of a major thrust fault.