lobes—that are threatening the highway. … It’s just wet and crazy,” he said with a laugh. This is a developing story. For a closer view, Alpine Air Alaska has posted aerial photographs and a video. In general, landslides are classified based on the material type being transported and the mechanics of how the material moves. Potential Landslides and Tsunami Hazards in Glacier Bay, Alaska Release Date: September 30, 2020 USGS landslide scientists recently completed an investigation that provides an initial assessment of areas where landslides could enter the water of Glacier Bay and generate tsunamis. Landslides and rising water across Southeast as rain breaks records and keeps falling, Jennifer Pemberton, Alaska's Energy Desk - Juneau, Rhett Morgan said about 2-3 inches of water flowed into his garage, Evacuations and a search for missing after rains prompt large landslide in Haines, Here’s ASD’s latest plan to bring Anchorage students back to classrooms, Unable to reach hospital because of weather, Pilot Station man dies of COVID-19. These include the numerous ground failures that resulted from the 1964 Great Alaska Earthquake, which were particularly significant in and around Anchorage. Changing climate in Alaska increases the risk of landslides Landslide maps help raise awareness and promote … City and state crews were busy clearing roadways of mud and debris on Wednesday morning. In 2004, an area of the Alaska Highway near Northway was rerouted because of a slope failure. Because landslides can potentially impact people and infrastructure in Alaska, DGGS conducts studies to evaluate unstable slopes and provide valuable information to policy makers, state and “I didn’t really know what to do at first so I went to Home Depot, and they were closed last night, and banged on the door until they let me get some sandbags.”, This storm is one for the record books. DGGS is currently involved in a number of landslide assessment and monitoring projects in Alaska, including: Alaska Division of Geological & Geophysical Surveys, Alaska Department of Transportation & Public Facilities, AKDOT&PF's Geotechnical Asset Management Program, Division of Geological & Geophysical Surveys. This region has a long history of tsunami waves generated by … An open letter signed by 14 scientists with expertise in landslides, tsunamis and climate change warns of an unstable mountain slope above the leading edge of the retreating Barry Glacier in Alaska. “In Taan Fiord (Icy Bay, Alaska), a … Farther south safety concerns at Alaska’s Glacier Bay National Park led to a 2017 report in which geologists described 24 landslides they believe were at least in part climate-related. Landslides in Alaska. Landslides are often complex, involving multiple types of movement and material, and may begin as one type of Landslides are common in Southeast Alaska and the U.S. Forest service has documented thousands of these features in Tongass National Forest. On July 25, Stark noted a possible landslide event in southeastern Alaska. High winds, flooding and landslides caused moderate to severe damage in communities across Southeast Alaska Wednesday, as an atmospheric river … On May 14, an Alaska Department of Natural Resources press release and a public letter from 14 scientists warned locals of a possible landslide-generated tsunami. Recent DGGS projects have assessed geotechnical characteristics relating to a landslide that occurred in September 2012 near the Dalton Highway bridge over the Yukon River; Juneau’s mayor Beth Weldon showed up to help, too. Juneau, Alaska (KINY) - Alaska State Troopers and other agencies are on the ground in Haines. mass movement and evolve into another as material moves downslope. Alaska and landslide tsunamis Alaska is no stranger to landslide-induced tsunamis. Transported materials include rock, soil (fine-grained material), Scientists have found such an unstable slope near Barry Glacier in Alaska, the United States that stands the chance of failing and causing a mega tsunami bringing damage and destruction on a massive scale. Nearly a foot of rain fell in Pelican over the last 48 hours. The downpour inundated low-lying areas around nearby Ward Lake, and 50 mph gusts knocked out power north of town early Tuesday morning. These include the numerous ground failures that resulted from the 1964 Great Alaska Earthquake, which were These landslides resulted in three fatalities and substantial Ketchikan was soaked with about 9.5 inches of rain over the Thanksgiving weekend, according to federal meteorologists. Landslide potential depends on a number of factors, including topography (slope), geology, lithology (rock or sediment type), vegetation, and water. At the landslide's current elevation, its mass would trigger a tsunami with waves hundreds of feet tall in Barry Arm. “No houses floating away, nothing like that,” said Miller. Many regions in Alaska are especially prone to landslides. “It is well established that Alaska sees large landslides in the spring, and that their increasing size and frequency is driven by global heating,” Petley wrote. According to Troopers there has been a landslide in Haines which has damaged at least one house and has possibly cut off access to the airport. Landslide on the west side of the Dalton Highway, south bank of the Yukon River. … No life threatening damage of any sorts.”. Using imagery from the Landsat 8 satellite, scientists have confirmed that a large landslide occurred in southeastern Alaska on February 16, 2014. There are a number of flood watches and warnings active across the region and even a winter storm warning still in effect for White Pass, which is the only part of the panhandle receiving its precipitation in the form of snow. There are many examples of landslides that have significantly impacted Alaska. In Alaska, degrading permafrost, steep slopes, heavy rain, retreating glaciers, ground-shaking from earthquakes, and isostatic On May 14, an Alaska Department of Natural Resources press release and a public letter from 14 scientists warned locals of a possible landslide-generated tsunami. The Tatsuda's IGA building in Ketchikan, Alaska was condemned Feb. 27, 2020 after it was struck early Thursday morning by a rockslide. A glacier that had held an Alaskan slope in place for centuries is melting, releasing the soil beneath in what can be described as a slow-motion landslide, researchers say. Only July 9, 1958, an earthquake triggered a landslide in Lituya Bay, releasing an estimated 40 million cubic yards (30 million cubic meters) of material.

landslides in alaska

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