Megatsunami: False-color Landsat 8 image

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 ... On Sunday, a 1,585 foot high megatsunami struck a portion of Alaska, leading to widespread devastation which greatly changed the landscape. Thankfully, no on... On September 16, 2023, more than 25 million cubic yards of rock and ice – enough to fill 10,000 Olympic-size pools – broke loose and plunged into Dickson Fjord. The impact hurled up a mega - tsunami wave, reaching about 650 feet high.