2014 Oso landslide

2014 Oso landslide
Oso Mudslide on March 29, 2014, view to the northeast
DateMarch 22, 2014 (2014-03-22)
Time10:36 a.m.
LocationOso, Washington
Coordinates48°16′57″N 121°50′53″W / 48.28256°N 121.84800°W / 48.28256; -121.84800
CauseSuspected soil saturation from heavy rainfall[1]
Deaths43[2]
Non-fatal injuries12 total (4 serious)[3]
Missing0[4]
Property damage$60 million (2014 USD) [5]

A major landslide occurred 4 miles (6.4 km) east of Oso, Washington, United States, on March 22, 2014, at 10:37 a.m. local time. A portion of an unstable hill collapsed, sending mud and debris to the south across the North Fork of the Stillaguamish River, engulfing a rural neighborhood, and covering an area of approximately 1 square mile (2.6 km2). Forty-three people were killed and 49 homes and other structures destroyed.[2] The landslide has been described as one of, if not the most, deadly landslide in American history.[6][7]

  1. ^ Washington Post, March 24, 2014.
  2. ^ a b Snohomish County Medical Examiner's Office (July 23, 2014). "Snohomish County Medical Examiner's Office Media Update". Retrieved July 27, 2014.
  3. ^ Seattle Times, April 7, 2014.
  4. ^ Snohomish County Sheriff's Office (May 28, 2014). "SR 530 Slide Area Missing Person List". Archived from the original on July 14, 2014. Retrieved June 7, 2014.
  5. ^ Storm Events Database, NOAA
  6. ^ "Friday marks 10 years since 43 killed in Oso landslide". KIRO 7 News Seattle. March 20, 2024. Retrieved March 23, 2024.
  7. ^ Bernhard, Jimmy (March 22, 2022). "Remembering the Oso landslide, deadliest in US history, 8 years later". king5.com. Retrieved March 23, 2024.