slow motion landslide in Wyoming

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A house breaks apart as a slow-moving landslide in Jackson, Wyo. advances downhill on Friday. The slide has cut off access to a 60-person neighborhood and has threatened town utilities, including a water line.

19 April
JACKSON, Wyo. — A sudden lurch in a creeping landslide in the northwest Wyoming resort town of Jackson split a house in two and forced workers to abandon just-begun efforts to stabilize the hillside.

A huge crack in the ground that had opened up under the house a couple weeks ago shifted several feet downhill in less than a day, breaking off a room or two and leaving a door swinging above the precipice. Rocks and dirt tumbled down in an almost constant stream and a geologist warned much bigger chunks could fall. The ground had been moving at a rate of an inch a day.

"As it starts to get moving, it will start to get faster," George Machan, a landslide specialist consulting for the town, said at a town meeting Friday.

http://billingsgazette.com/news/state-and-regional/wyoming/looming-creeping-landslide-splits-home-in-jackson-wyo/article_b8e4bc86-0bbc-562b-bf6e-29cabc863f58.html