ANSS Composite Earthquake Catalog
The ANSS (Advanced National Seismic System) Composite Catalog is a world-wide earthquake catalog created by merging the master earthquake catalogs from contributing ANSS institutions and then removing duplicate solutions for the same event. The ANSS Composite Earthquake Catalog grew out of the efforts of the CNSS (Council of the National Seismic System). It was previously called the CNSS Earthquake Catalog. The ANSS Composite Catalog consists of earthquake hypocenters, orgin times, and magnitudes. Beginning January 1, 2013, ComCat is the catalog of record, superseding the ANSS catalog. ComCat, a newer and different composite catalog, contains earthquake source parameters (e.g. hypocenters, magnitudes, phase picks and amplitudes) and other products (e.g. moment tensor solutions, macroseismic information, tectonic summaries, maps) produced by contributing seismic networks. However, historic regional seismic network catalogs have not yet been fully loaded into the ANSS Comprehensive Catalog.
Information from the ANSS Composite Catalog:
- Search the ANSS Composite Catalog
Use the form to generate your own search of the ANSS Composite Catalog.
Copying the ANSS Composite Catalog
The ANSS catalog files are available via anonymous ftp.
ANSS submissions: Input data from the contributing networks
The input data provided by the various networks for the ANSS Composite Catalog are available via anonymous ftp.
Information about the ANSS Composite Catalog:
- Details of the catalog creation
Description of the process of catalog generation.
- Data availability & catalog caveats
Description of the time period of coverage for contributing networks.
- Source codes for the contributing networks
Table of source codes that identify the contributing network or agency.