The tsunami with the highest run-up was the 1958 Lituya Bay megatsunami, which had a record height of 524 m (1,719 ft).

The tallest wave ever recorded was a local tsunami, triggered by an earthquake and rockfall, in Lituya Bay, Alaska on July 9, 1958. The wave crashed against the opposite shoreline and ran upslope to an elevation of 1720 feet, removing trees and vegetation the entire way.

By contrast, megatsunamis occur when a large amount of material suddenly falls into water or anywhere near water (such as via a landslide, meteor impact, or volcanic eruption). They can have extremely large initial wave heights in the hundreds of metres, far beyond the height of any ordinary tsunami.

This is the largest and most significant megatsunami in modern times; it forced a re-evaluation of large-wave events and the recognition of impact events, rockfalls, and landslides as causes of very large waves.

2023年6月7日 · The tsunamis on this list aren’t necessarily the deadliest or most destructive, but they do dominate one category: sheer magnitude. Here are the tallest megatsunamis ever …

2011年3月16日 · Here are the ten biggest tsunamis in recorded history, ranked by the devastation they wrought. The earthquake and subsequent tsunami that devastated Japan in 2011 …

2024年8月22日 · Luckily, there weren't many people in or around the bay at that time, and only three boats were hit by the world's largest recorded tsunami. This led to just two fatalities, which is still tragic, yet far less devastating than other tsunamis that have hit densely populated areas.

2023年1月3日 · The 2011 Tōhoku earthquake in Japan, for instance, triggered a tsunami that reached heights of up to 40.5 meters (133 feet), traveling at 700 km/hs, and reaching more …

2023年4月2日 · The resultant wave was not just a tsunami but the largest tsunami ever recorded, a megatsunami. At an estimated 1,720 feet high at its highest, it would have dwarfed every …

2020年11月22日 · On one ridge opposite the slide, waves splashed up to an elevation of 1,720 feet (524 meters)—taller than New York’s Empire State Building. The event at Lituya Bay still stands as one of the tallest tsunami waves known to science. The photo above, taken in 1958 after the tsunami, shows the ring of damage around much of the bay.