Looming, Creeping Landslide Splits Home In Wyoming

 

 

 

 

 

 

 

” 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.

  Still, Machan said the ground was unlikely to liquefy and collapse suddenly like the March 22 landslide in Oso, Wash., that killed 39 people.

  More likely, large blocks of earth would tumble down piece by piece, he said, perpetuating the drawn-out threat to four homes on the hill and to two apartment buildings and four businesses below.”

Washington Post