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Hawaii can give birth to a giant tsunami. It’s almost unimaginable: tsunamis over 1000 feet (300 meters) high approaching the Hawaiian Islands. But scientists got new evidence – these waves are monsters called mega-tsunamis, will do just that. The results were presented at annual meeting of the American Geophysical Union. Unlike from a tsunami from an earthquake, the Hawaiian tsunami will strike when there will be a massive collapse of the chain of volcanoes on the islands and begin huge landslides. This happens approximately every 100,000 years, and linked to climate change, said Gary McMurtry (McMurtry) Professor of the University of Hawaii at Honolulu.
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About 250,000 years ago, the tsunami threw huge rocks 820 feet (250 m) on the slopes of the island, said Fernando Marquez, professor University of Lisbon in Portugal. (Hawaii’s main island is one of the largest volcanoes in the world). McMarty Team found traces of two younger and slightly smaller tsunamis at South Point ( South Point), the main island of Hawaii, one occurred 50,000 years ago and another – 13,000 years. Deadly landslides causing tsunamis happen on volcanic islands around the world, and are potential danger to the eastern United States. “We we find them everywhere, but we don’t know all historical cases, so that we should go back in time, “said Anthony Hildenbrand, volcanologist at the University of Paris-South (Paris-Sud) in France, which helped identify ancient sites the origin of the tsunami. Giant landslides seem to occur in periods of sea level rise when the climate is also warmer and wet, Hildenbrand told OurAmazingPlanet.
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Researchers suggest sea level rise may destabilize the flanks of volcanic islands, and prolonged and heavy rains can be absorbed by their steep slopes, starting landslide trigger. There are at least 15 gigantic landslides that have slipped from Hawaii in the last 4 million years, only 100,000 have passed since the last years, according to the US Geological Survey. Then the block slipped rocks the size of Manhattan.
Time Volcanoes Island Climate
