Maps, lists, data, and information about today's earthquakes, lists of the biggest earthquakes, and recent earthquakes.

Worldwide Holocene Volcano and Eruption Information. The Global Volcanism Program (GVP) seeks better understanding of all volcanoes through documenting their eruptions--small as well as large--during the past 10,000 years. The range of volcanic behavior is great enough, and volcano lifetimes are long enough, that we must integrate observations of contemporary activity with historical and geological records of the recent past in order to prepare wisely for the future.

Information on worldwide earthquake activity, earthquake science, and earthquake hazard reduction.

The Premier Source of Volcano Information on the Web. Volcano World is currently housed in the Department of Geosciences at Oregon State University and kept alive by ongoing volunteer efforts.

A Commission of the International Association of Volcanology and Chemistry of the Earth's Interior (IAVCEI). WOVO is an organization of and for volcano observatories of the world. Members are institutions that are engaged in volcano surveillance and, in most cases, are responsible for warning authorities and the public about hazardous volcanic unrest.