Last Updated: Friday, December 6, 2013, 12:54
A team of researchers have shed light on what caused the devastating tsunami that struck Japan`s Tohoku region in March 2011.
Last Updated: Saturday, September 17, 2011, 10:15
A volcano in Alaska`s Aleutian Islands has been in an unusual low-level eruption for two months, raising the spectre of an explosive eruption with little warning.
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