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"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
Expanding the author's original work on processing to include inversion and interpretation, and including developments in all aspects of conventional processing, this two-volume set is a comprehensive and complete coverage of the modern trends in the seismic industry - from time to depth, from 3D to 4D, from 4D to 4C, and from isotropy to anisotropy.