Rainfall saturating the ground, potentially triggered by wind, are common culprits in landslides in Southeast Alaska.
A deadly landslide in Ketchikan on Sunday, Aug. 25, 2024, seen on the Ketchikan Gateway Borough’s website. on Sunday can strike with little warning, sending earth and trees crashing down a mountainside as fast as a car on a highway.
Dr. Gabriel Wolken is manager of the Climate and Cryosphere Hazards Program for the state Division of Geological and Geophysical Surveys. Wolken says landslides are often the result of a complicated series of events.Gabriel Wolken And then several factors contribute to the development of landslides. You know, rainfall, snowfall, temperature changes, and of course, wind is one of those. Typically, wind’s influence on the development of landslides has to do with the wind’s impact on trees, and then how the tree acts as a lever on the soil,and the different physical interactions that happen at that point.
Southeast Weather Alaska Division Of Geological And Geophysical Surv Climate And Cryosphere Hazards Program Gabriel Wolken Geology Ketchikan Landslide
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