“A large landslide occurred in northwest Washington[…], leading to tragic loss of life and destruction of property. Landslide debris covered about 40 homes and other structures as well as nearly a mile of State Route 530. It also caused 43 fatalities in the community of Steelhead Haven near Oso, Washington. This event is commonly named the ‘Oso Landslide’ in many official reports. It is also referred to as the ‘SR530 Landslide,’ as named by Snohomish County and Washington State.” — One Year Later – The Oso Landslide in Washington
Date of event: March 22, 2014
Related Resources:
- CHDS Alumni Response: Massive Oso Landslide Response Bolstered with CHDS Alumni
- SR 530 Landslide Commission: Final Report
- LLIS Innovative Practice: SR 530 Mudslide and Flooding: Using Social Media to Communicate Information During a Disaster
Photo: Oblique aerial photograph of the Oso, Washington landslide, showing the entire extent of the landslide source area and path. (Credit: Mark Reid, USGS)