Lituya Bay Megatsunami - 1958

On July 9, 1958, an earthquake with a magnitude of 8.3 on the Richter scale rocked a small inlet in Alaska called Lituya Bay. It then caused part of a mountain at the back of the bay to collapse, causing a monstrous tsunami (an iminami) to fly headlong through the bay. At a mountain at the mouth of the bay, the run was measured to be 524 m making it the largest wave in recorded history.