Earthquake Strong Motion Data at NGDC
STRONG MOTION DATA CATALOG SEARCHTo determine the availability of records suitable for specific applications, a comprehensive database of the entire earthquake strong motion was created. The database contains information on the triggering earthquake and station characteristics for each accelerogram. This database can be searched online. DESCRIPTION OF DATA The data, which date from 1933 to 1994, are representative of a very broad range of structural and geologic recording environments. Records are contributed to the archive from various industrial, academic, and governmental sources located around the world. STRUCTURAL RECORDS Over one-half of the strong motion database consists of records obtained from various structures. Most of these include sites of engineering importance such as dams, bridges, utilities and large buildings. These records represent a comprehensive collection of accelerograph data suitable for the analysis of dynamic structural response and soil-structure interaction. FREE-FIELD RECORDS Approximately 4000 records in the database are available from ground response sites. Obtained from a wide variety of geologic environments, these records comprise an important subset useful for the study of seismic attenuation in a wide variety of regional geologic media ranging from young alluvium to hard rock. Several near source records included in the database are useful for source mechanism studies. SPECIAL ARRAY RECORDS Included in the archive are records from several accelerograph instrument arrays which are used to study specific problems in strong ground motion. Numerous records are available from several diverse arrays. AVAILABILITY OF DATA All of the digitized strong motion data are arranged into sets grouped by either triggering events or geographic regions. These sets, which are identified by a particular data set number (such as SM-USACA01 or SM-TAI04), are described in Strong Motion Data Sets. More detailed information about the listed data sets can be provided by contacting NGDC or by obtaining a copy of our digital catalog SMCAT. Most of the data sets include three types of processed records: uncorrected (raw), corrected (filtered), and response spectra (includes Fourier spectra). Each data set is distributed with documentation containing (when available) information on the triggering earthquakes, recording stations, record processing procedures, and data format. These data were originally available on a three-volume CD collection. The contents of each volume are available for download:
OTHER SOURCES OF EARTHQUAKE STRONG MOTION DATA AND INFORMATION |
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