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Divergent plate boundaries in oceans Two ocean plates move apart from each other. Hot upwelling mantle material forms magmas that continuously produce new oceanic crust. An ocean widens.
Sakurajima volcano photos One of the world's most active volcanoes, Sakurajima on Japan's Kyushu Island is famous for its frequent vulcanian explosions, often accompanied by eruption lightning.
Colima volcano photos This beautiful stratovolcano in western Mexico is one of the most active volcanoes on the American continents. It is known for its often spectacular explosions and sometimes glowing avalanches.
Redating the Minoan eruption of Santorini A 3600 y.o. fossil olive tree discovered in the Minoan pumice allows to refine the date of the Minoan eruption on Santorini to the 17th century B.C.
Monthy earthquake reports For each month since July 2012, we publish a summary of quake activity world-wide: find the list of largest quake, a map showing all significant quakes as well as detailed statistics on seismic activity during this time.