The largest ocean wave recorded yet — a mammoth 170m in height — has been documented off the tiny, low-lying Western Pacific nation of Palau by two scientists studying seawater temperatures.

The rogue wave struck on March 28, 2001, but there were no washed out villages or land devastation.

The wave was entirely underwater and its major effect was rapidly changing seawater temperatures.

Patrick Colin, director of the Coral Reef Research Foundation based in Palau said the implications of the findings about deep-water internal waves are “altering our thinking about how coral reefs maintain themselves”.

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