Earthquakes, Tsunamis and Asteroid Impacts

National Earthquake Information Center. This is the site for information and maps on the latest earthquakes to occur on the globe. It features lists of the largest, deadliest, and costliest earthquakes, an interactive database that produces customized reports and much more.

The IRIS Consortium. IRIS is a university research consortium that collects and distributes seismic data. A clickable epicenter map supplies information on events that have occurred in the last 30 days. Detailed event specific data files and maps are available via the IRIS SPYDER database for events since October 1996.

Tsunami. This site provides access to information on -tsunami events as well as access to near-real time events via a link to the West Coast/Alaska Tsunami Warning Center.

Asteroid and Comet Impact Hazards. This site contains a list of upcoming close encounters with asteroids. It also has an image gallery of impact craters and other information relating to cometary and asteroid impacts.

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Volcanoes

Michigan Technological University Volcanoes Homepage. This site offers exceptional information on current volcanic activity, remote sensing images of volcanoes and links to other volcano related Web sites. The MTU coverage includes location/geological setting, topographic maps and air photos, meteorology, type of edifice, petrology, eruption history, bibliography and images for indexed volcanoes.

The Electronic Volcano. Hosted by Dartmouth College, this site maintains an excellent bibliography of volcanological literature.An index provides links to information by volcano name or by country.

USGS Volcano Learning Web.
The U.S. Geological Survey has a series of regional volcano observatories in the Pacific Rim which are excellent for locating regional volcanic information.

Cascades Volcano Observatory for volcanoes in the Cascade Range including extensive information on Mt. St. Helen's.

Alaska Volcano Observatory for volcanoes along the Aleutian arc.

Hawaiian Volcano Observatory for Hawaiian arc volcanoes.

There are numerous sites about volcanoes on the Web. A few others of note include:     Smithsonian's Global Volcanism Program, Italy's Volcanoes, and the Volcanic Homepage.

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Mass Movements

Cyberspace Snow and Avalanche Center. This site provides current conditions and avalanche bulletins for mountainous regions all over the world as well as an incident report table for the current season that includes location, fatalities, activity that sparked the event, and more. There are also numerous statistics and an archive of eye-witness accounts and reports.

Westwide Avalanche Network. Maintained by the American Association of Avalanche Professionals, this site contains extensive information on current and past avalanche seasons, detailed accident reports and a photo library of avalanche events.

National Landslide Information Center. This site provides access to fact sheets, reports and images of specific U.S. landslide events.

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