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TRUE/FALSE. in 1958, lituya bay (ak) witnessed a tsunami resulting from a rockfall of approximately 9 million tons of debris falling 90 meters into the bay.

Sagot :

false. An estimated 9 million tons of rock and other debris fell 90 meters into Lituya Bay (AK) in 1958, causing a tsunami. The 1958 Lituya Bay earthquake.

A fjord called Lituya Bay is situated on the Fairweather Fault in the Gulf of Alaska's northern region. It is a T-shaped harbor that is 2 miles (3 km) wide and 7 miles long (11 km). [10] An ice-scoured tide entrance with a maximum depth of 722 feet is Lituya Bay (220 m). The shallow bay's entrance is barely 33 feet deep (10 m). [10] The Gilbert and Crillon inlets, which are a portion of a trench on the Fairweather Fault, are the two arms that make up the top of the T-shaped bay.  Lituya Bay has had three previous tsunamis above 100 feet in the preceding 150 years: in 1854 (395 ft or 120 m), and in 1899 (200 ft).

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