Advanced National Seismic System delivers improved information

Abstract

The Advanced National Seismic System (ANSS),an initiative begun in 1998 to integrate, expand, and modernize seismic monitoring nationwide, is providing improvements in earthquake monitoring and in the development, production, and delivery of earthquake data, information, and science. The ANSS initiative is an element of the Earthquake Hazard Program (EHP) of the U.S.Geological Survey (USGS).The USGS National Earthquake Information Center (NEIC),an integral part of ANSS, has incorporated into its routine operations many of the developments in data processing and data products supported by the ANSS. The four principal elements of ANSS monitoring operations are, in sequence: data collection, data processing, generation of data products, and product dissemination. This article describes the current status and new developments in each of these elements, and how they have affected NEIC capabilities.