Tech UPTechnologyJapan's tsunami created new icebergs in Antarctica

Japan's tsunami created new icebergs in Antarctica

icebergsThe earthquake that Japan suffered on March 11 caused the displacement of the Whillans glacier, a tongue of ice in motion in the Antarctic Ocean that moved “abruptly” half a meter after the earthquake, according to a study by the University of California (USA). ) published in the magazineJournal of Geophysical Research. The team from the University of California coordinated by Jake Walter has been monitoring the movements of this glacier with GPS stations since 2007, which, as he pointed out, moves at different speeds, with an average of one meter per day. However on March 11, after the 8.8 magnitude earthquake occurred, it was recordeda “sudden” displacement in which the glacier moved “suddenly” half a meter. Experts have indicated that the normal movement of the glacier is linked to the tides, so the subsequent tsunami could also “have something to do with this event.”

On the other hand, a study carried out by NASA scientists and published in the magazineJournal of Glaciologyhas related thedetachment of huge ice masses – the size of Manhattan Island – on the Antarctic Sulzberger shelfwith the passing of the Tohoku tsunami, which originated with the earthquake off the coast of Japan in March 2011,13,000 kilometers awayof the tremor. Using satellite imagery, Kelly Brunt and colleagues at the Goddard Space Flight Center identified new icebergs floating in the Ross Sea about 18 hours after large waves hit Antarctica. After comparing them with historical images from the satellite, the group concluded that there was a slight rise in ice, not recorded since 1965.

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