PEER Strong Motion Database

Introduction Browse Search Documentation Providers Credits

ARCHIVED DATABASE VERSION. Visit the latest version of the database!


The PEER NGA Database -- version 2 of this database -- is now available. It includes a larger set of records, more extensive meta-data and some corrections to information on this site. At this time, the new site contains only acceleration time history files.

About This Database

The PEER Strong Motion Database contains 1557 records from 143 earthquakes from tectonically active regions, processed by Dr. Walt Silva of Pacific Engineering using publicly available data from Federal, State, and private providers of strong motion data.

The Pacific Gas and Electric Company, the California Energy Commission, and the California Department of Transportation have sponsored the development of the strong motion database as part of the PEER Directed Studies program on lifelines. The National Information Service for Earthquake Engineering, sponsored by the National Science Foundation, is responsible for programming and distribution of the database.

The processing of the strong motion records in the PEER database is in general different than the processing done by the agency that collected the data. Although the processed records may be different, the differences should be small within the frequency passband common to both processing procedures.

Browser Requirements

This application is available in two forms. The Java version requires the Java 1.2 browser plug-in (or higher) available free of charge from Sun's website. This version allows dynamic sorting and interactive plotting. (Graphic preview)

The text-only version works with all browsers and uses a basic query form for selecting and downloading records.

News and Notes

Many people have reviewed this site and provided comments, including notes on specific records and corrections to some database records. See the notes page for updates.

This work was supported in part by the Pacific Earthquake Engineering Research Center through the Earthquake Engineering Research Centers Program of the National Science Foundation under Award number EEC-9701568.

© Copyright 2000, Regents of the University of California
Questions or comments about this site