Foreword
This report provides guidance and reference material on installing, using and maintaining strong motion instruments at dams and sources of recorded earthquake motions for use in analyses. The report, prepared by the Committee on Earthquakes of the United States Society on Dams, updates and expands the scope of the committee's report Strong Motion Instruments at Dams, June 1989. There have been major improvements in the measurement, processing, dissemination and use of strong motion data in recent years. Improved technology and cooperation between many agencies make strong motion data available on the internet minutes after earthquakes occur.
The report was prepared by a subcommittee of the Committee on Earthquakes, comprising Donald H. Babbitt, C. Eric Lindvall and Le Val Lund (deceased). George Horowitz assisted in editing the report. Other committee members provided information for the report, as did dam owners, the California Strong Motion Instrumentation Program, and instrumentation manufacturers. Their contributions are gratefully acknowledged.
USSD Committee on Earthquakes
Joseph L. Ehasz, Chairman
Donald H. Babbitt, Vice Chairman
John A. Barneich
Moshen Beikae
Bruce Brand
Gilles Bureau
Yusof Ghanaat
George F. Horowitz
Peter J. Hradilek
C. Michael Knarr
Richard W. Kramer
C. Eric Lindvall
Faiz I. Makdisi
Enrique E. Matheu
Larry K. Nuss
Warren J. Paul
Mark G. Schultz
John C. Stoessel
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