For those who have access to the internet and a graphical web browser such as Mosaic or Netscape, the following web pages provide free access to some of the leading research databases in the field. Data includes world and local earthquake seismicity maps, as well as digital records of major world earthquakes. Furthermore, these sites often include listings of numerous other resources, including books, pamphlets, and other teaching materials, and are often cross referenced to aid in searching other related web sites.
Some sites also provide free access to online versions of their printed publications.
This web site describes the mission of the organization and their products and services. This site is a comprehensive compendium of links to various seismological sites. This site is a joint effort of the UC Berkeley Seismographic Station and the USGS Menlo Park. The Data Center provides information on both recent and historical Northern and Central California seismicity, including earthquake catalogs and digital broadband data. This site is the data center for the Southern California Earthquake Center and provides access to earthquake information on both recent and historical Southern California seismicity including earthquake catalogs and digital broadband data.