Reauthorization of National Earthquake Hazards Reduction Act : hearing before the Subcommittee on Science, Technology, and Space of the Committee on Commerce, Science, and Transportation, United States Senate, Ninety-sixth Congress, second session on S. 1393, to amend section 7 of the Earthquake Hazards Reduction Act of 1977 (42 U.S.C. 7704) to extend authorizations for appropriations, and for other purposes, April 2, 1980