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Tsunami in Kesennuma city, ascending the Okawa river - Duration: 25:49. clancy688 Recommended for you. More recently, a 2015 landslide at Taan Fjord in a remote area west of Yakutat, Alaska, spawned a tsunami that was initially more than 600 feet high. Before joining Nature, Quirin worked as a cartographer. âWe need at least ten such events to be able to have some rudimentary confidence in landslide computational models to study future impacts and establish early warning criteria.â. The Icy Bay landslide in Alaska. The landslide flowed into Taan Fjord, triggering a localised tsunami that was detected 155 km away, according to the Lamont-Doherty press release. Further to the Kaikoura earthquake: “Three quake landslide dams at high risk” article can be found at http://m.nzherald.co.nz/nz/news/article.cfm?c_id=1&objectid=11761114 . For the best commenting experience, please login or register as a user and agree to our Community Guidelines. Oxford Suzhou Centre for Advanced Research, © 2019 Macmillan Publishers Limited, part of Springer Nature. Our award-winning show features highlights from the week's edition of Nature, interviews with the people behind the science, and in-depth commentary and analysis from journalists around the world. The 2015 Taan Fjord landslide generated a 633 foot high tsunami, for example. “In Taan Fiord (Icy Bay, Alaska), a landslide that began moving slowly decades ago suddenly failed in October 2015. More recently, a 2015 landslide near Alaska’s Taan Glacier produced a 633 feet (193 meter) wave in Taan Fjord that smashed into the opposite wall of the glacial valley. Greenland once lost nearly all its ice â and could again. The landslide generated a large tsunami that caused extensive damage along the flanks of Taan Fjord. The evacuated subaerial landslide area and runout are visible to the left of the fjord head. Both of these events thankfully occurred in sparsely populated areas, so few fatalities occurred. Having detected the Tyndall Glacier landslide, Stark and Ekstrom located it with a very high resolution satellite image, which Lamont-Doherty have included in their press release : On 17 October 2015, a landslide of roughly 60 × 10 6 m 3 occurred at the terminus of Tyndall Glacier in Taan Fiord, southeastern Alaska. They warn that such events could become more frequent as the climate warms. Vegetation loss is clear near the water line. He is particularly interested in climate, oceanography, fisheries and the Earth sciences. âBut with global warming and sea level rise, such landslides are going to be far more common.â. In October 2015, a massive landslide slid into Taan Fjord and created a tsunami in excess of 600 feet. In 2015, a similar landslide, on a slope that had also crept for decades, created a tsunami that sheared off forests 193 meters up the slopes of Alaska’s Taan Fiord. Icy Bay [near Taan Fjord] was full of glaciers as recently as 100 years ago.” A giant boulder moved by the tsunami as it ran down Taan Fjord. READ ALSO: The Year 2100 Will See the Fastest Melting of Greenland’s Ice Sheet in the Last 12 Millennia. Your email address will not be published. And in 2015, a landslide-generated tsunami in the Taan Fjord in Icy Bay, Alaska, caused a 300-metre run-up of water, says Synolakis.Â, âEarlier, we didnât really believe such extremes were possible,â he says. And in 2017, a landslide in Greenland produced a tsunami that roared into a small, isolated community. AGORA, HINARI, OARE, INASP, CrossRef and COUNTER. An earlier version of the map included an incorrect scale bar. The phenomenon, which occurred in October 2015, was recorded in the Taan fjord in southeastern Alaska and appears to be within the four largest tsunamis recorded in the past century. It was actually discovered in New York City from satellite photos and a large team of scientists was sent out to examine the evidence of this rare and extreme tsunami that tore across Taan Fiord. Fritz adds that the Greenland event is reminiscent of a 1958 tsunami â the tallest ever recorded1 â in Lituya Bay, Alaska. The tsunami wreaked havoc on the small village of Nuugaatsiaq, located on an island within a fjord. More recently in 2015, a landslide in Taan Fjord sent roughly 10 million cubic yards of material tumbling into the waters of the remote area west of Yakutat, Alaska and caused a tsunami … And although the tsunami dissipated quickly as it crossed the deep, six-kilometre-wide fjord, it still had enough energy to send water 50 metres up the hillside opposite. 25:49. The wave washed away eleven houses, and four people are presumed dead. Last fall, when a similar-sized landslide landed directly in Alaska’s remote Taan Fiord, scientists discovered that it created a tsunami wave so large, the water swept 600 feet up the opposite side of the fiord, stripping away the trees. This landslide-generated tsunami had a maximum height of over 600 feet. Geophys. The looming tsunami of Harriman Fjord A research team that visited the site earlier this month found that a large volume of rock had plunged â probably spontaneously â from one of the steep sides of the fjord into the water 1,000 metres below, and shattered chunks of a glacier. World News - US - Researchers warn of unprecedented mega tsunami if ice melts in Alaska - Scientists fear an unprecedented mega tsunami could occur if Alaska's ice melt occurs CAMEROON MAGAZINE - CAMEROUN INFO - CAMEROUN ACTU Alaska, Glacier, Landslide, Megatsunami, Nature World News, Prince William Sound, Tsunami, US, World News - US - Researchers warn of unprecedented mega tsunami … Fritz, H. M., Mohammed, F. & Yoo, J. A group of scientists warned of the prospects of this impending disaster in Prince William Sound in […] A giant, catastrophic tsunami in Alaska triggered by a landslide of rock left unstable after glacier melting is likely to occur in the next two decades, scientists fear – and it could happen within the next 12 months. As noted above, this is the largest recorded landslide in North America, with a volume of about 72 million cubic metres and a mass of about 180 million tonnes. The Icy Bay landslide in Alaska: a nice video describing the link with glacial melting. And in 2017, a landslide in Greenland produced a tsunami that roared into a small, isolated community. He ….  On 9 July 1958, a 7.8 M w strike-slip earthquake in southeast Alaska caused 90 million tonnes of rock and ice to drop into the deep water at the head of Lituya Bay. GNS Science has posted a nice video in which Dr Chris Massey explains some of the key features of the landslides, and the work they are doing to try to monitor them: Posted in: Your email address will not be published. In Greenland, a 2017 landslide-caused tsunami killed four people. The horrible landslide in Taiwan 屏東恐怖的山崩 - Duration: 5:10. A 200 million-ton landslide landed on the toe of Tyndall Glacier and in the water of Taan Fiord on Oct. 17, 2015, Icy Bay, Alaska. That disturbance pushed water levels up by more than 90 metres along the coastline on the same side as the slide. Scientists hope studying last monthâs deadly event will improve modelling of rockslides that could become more frequent with climate change. A very nice video has been posted on Youtube describing the link between the giant Icy Bay landslide in Alaska in 2015 (this landslide is also variously known as the Taan Fjord landslide and the Tyndall Glacier landslide), which is the largest known recent landslide in North America, and the melting of the adjacent glacier. Required fields are marked *. A much more recent slope failure event in 2015 in Taan Fiord to the east produced a tsunami reaching as high as 193 meters (633 ft), and the researchers say these failures can be … Tsunami-inducing landslides are rare but have occurred in Alaska and elsewhere. The landslide, pictured above, occurred on 17th October 2015 occurred on the flanks of Taan Fjord in Icy Bay in Alaska. By comparison, the 2011 quake-triggered tsunami in Japan, which killed more than 16,000 people and caused the Fukushima nuclear disaster, reached only about 40 metres at its maximum height. The slide was so large that it generated a seismic signal suggestive of a magnitude-4.1 earthquake, confounding initial efforts to identify its cause, says Trine Dahl-Jensen, a seismologist at the Geological Survey of Denmark and Greenland. The sliding rock stopped a few miles short of the inlet this time. Because this is a recently deglaciated fjord with steep slopes and crossed by a major fault, one possibility was a landslide-generated tsunami. Both of these events thankfully occurred in sparsely populated areas, so few fatalities occurred. VIDEO: Camp Bay, height Numerical simulation of the Taan Fiord tsunami, showing the height of the moving water above the tide level. A 2015 Taan Fjord slope failure caused a 193-meter (or 633 feet) tsunami. partner of AGORA, HINARI, OARE, INASP, CrossRef and COUNTER, Chunks of glacier shattered when a powerful tsunami ripped through a fjord, Tsunami alerts fail to bridge the âlast mileâ, Deputy Director of Nanoscopy Center in SLST, ShanghaiTech, Vice Dean for Faculty Affairs in School of Life Science and Technology (SLST), ShanghaiTech University. The landslide occurred on the evening of 17 June, in the barren Karrat Fjord on the west coast of Greenland. Taan Fiord, Alaska, U.S. At Taan Fjord in 2015, a landslide caused a tsunami that crested at 600 feet.
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