Megatsunami: The resulting displacement of water caused

The resulting displacement of water caused 50 million cubic metres of water to overtop the dam in a 250-metre high megatsunami wave. The flooding destroyed the villages of Longarone, Pirago, Rivalta, Villanova and Fae, killing 1,450 people. 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. False-color Landsat 8 image of Lituya Bay, 2020. The damaged trimline is still imprinted in the forest. The lighter green areas along the shore indicate places where forests are younger than older trees (darker areas) that were not affected by the tsunami. The 1958 Lituya Bay earthquake occurred on July 9, 1958, at 22:15:58 PST with a moment magnitude of 7.8 to 8.3 and a maximum Mercalli intensity of XI (Extreme). [4] The strike-slip earthquake took place on the Fairweather Fault and ... Scientists are warning that a 1,000-foot-tall “ mega tsunami ” could potentially wipe a large chunk of America off the map – if a strong enough earthquake hits a specific active fault line over...