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OFR 97–464: Cover Page

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DEPARTMENT OF THE INTERIOR
U. S. GEOLOGICAL SURVEY

 

Preparation of Earthquake Catalogs
for the National Seismic-Hazard Maps:
Contiguous 48 States

 

by

Charles Mueller, Margaret Hopper, and Arthur Frankel

 

Open-File Report 97-464

 

This report is preliminary and has not been reviewed for conformity with U. S. Geological Survey editorial standards. Any use of trade, product, or firm names is for descriptive purposes only and does not imply endorsement by the U. S. Government.

 

USGS, Mail Stop 966, P. O. Box 25046, Denver, CO 80225

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