Information about and photos of the Cascades volcanoes, Mount Saint Helens updates, and volcano monitoring and hazards information.

Monitors an active volcano in Mexico that has erupted more than 40 times since 1576. Reports mainly in Spanish but some are translated into English.

Observatories on Guadaloupe and Martinique Islands in the Caribbean Sea, and on the Comores and Reunion Islands in the Indian Ocean. Text in French.

Mainly biological research but during local eruptions it becomes the volcano observatory.

Gallery of volcanic events as captured by weather satellites.

U.S. Geological Survey's comprehensive site about Hawiian Volcanoes.

Real-time data on earthquakes, ground deformation, and volcanic gas.

Monitors erupting lava dome on the Island of Montserrat in the Caribbean.

Photos and summary of studies on Antartica's Mt. Erebus, the world's southernmost volcano.

Part of the Earthquake Research Institute (ERI) of the University of Tokyo. Conducts various scientific researches on magmatic processes and volcano dynamics, which will help to improve prediction of volcanic eruptions.