The wave had a maximum run-up height of 120 metres 394 ft , flooding the coast of the bay up to 229 metres 750 ft inland.
Intensities and Accelerations The earthquake of July 9, 1958 in Lituya Bay was associated with ground motions of high intensity which resulted in very high ground accelerations near the head of the Bay.
Bill Swanson described his boat lodged bow-first near the crest of the wave, as if surfing it backwards, as he looked down at treetops far below him.
A 2008 study examined this scenario and concluded that while it could cause a megatsunami, it would be local to the Canary Islands and would diminish in height, becoming a smaller tsunami by the time it reached the continents as the waves interfered and spread across the oceans.
Largest Waves Recorded Aside from the Lituya Bay incident, there have been the largest waves recorded in history.
Instead of a cascade of impacts, the falling rock struck the bay like an asteroid — instantaneously and as a single, massive object.