The largest known undersea landslide occurred over 8,000 years ago off the coast of Norway. The volume of material that moved is mind-blowing, over 4.6 X 1012 cubic yards or 850 cubic miles! Known as the Storegga landslide, the resulting tsunami buried neolithic settlements in Norway with sediment and caused wave runnup in Great Britain that was 80 feet higher than the normal high tide. The devastating loss of human life can only be imagined. Regarding that last question, anthropologists theorized that depending on the time of year when the disaster occured, the loss of life may have been less. During the summer and early autumn, most people in that region would have been in the highlands hunting moose and reindeer. The article linked below is about some interesting forensic geology work to determine the season when the landslide occurred. [Source: Read more at Dispatch.com. Image: “StoreggaFLCommonsZone” by Lamiot – Own work. Licensed under CC BY-SA 3.0 via Wikimedia Commons]
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Oregon Landslide News and Map
This is definitely the season for landslides, mudslides, debris flows and other mayhem in Oregon and elsewhere in the pacific northwest. It seems like every time I turn around there is another Google Alert in my inbox about a landslide related issue in that area. Having a hard time keeping up with it all, I decided to try something new. Click through to see a map of automatically updated landslide news in Oregon. Lets call it a Beta…so we’ll see if it works out. If it does, maybe I’ll try something similar for other areas or other items that tend to make it into the news. (Photo by Ross William Hamilton/The Oregonian)
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