Hidden Danger (IMAGE)

Columbia Climate School

Hidden Danger

Caption

A tsunami can occur as ocean crust (brown area) dives under continental crust (orange), causing the ocean floor to suddenly move. In a region off Alaska, researchers have found a large fault and other evidence indicating that the leading edge of the continental crust has split off, creating a tsunami-prone area where the floor can move more efficiently.

Credit

Anne Becel/Lamont-Doherty Earth Observatory

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