Summary of earthquake intensity file : a computerized file of the effects of earthquakes in the United States

"This report describes the Earthquake Intensity File (also called the Earthquake Effect File), a unique data base that the National Geophysical Data Center (NGDC) has been developing for several years. The file now contains more than 137,000 reports on about 21,000 earthquakes that affected the United States from 1638 through 1980"--Description of file. Jerry L. Coffman and Carlos Angel. Includes bibliographical references. 1983 NESDIS (National Environmental Satellite, Data, and Information Service) Library Public Domain 2286