How many people were killed in Oso landslide?

41
2014 Oso mudslide/Number of deaths

How many structures were destroyed in the Oso Washington landslide?

40 homes
Landslide debris blocked the North Fork Stillaguamish River, destroyed about 40 homes and other structures, and buried nearly a mile of State Route 530. Most tragically, it caused 43 fatalities in the community of Steelhead Haven near Oso, Washington.

What caused Oso Washington landslide?

Oso mudslide and recovery timeline Previous mudslides and slope erosion dating back to the 1930s likely set the stage for the catastrophic 2014 Oso mudslide. 1900s – Seasonal high water begins eroding the hill that eventually gave way in the 2014 mudslide. The Stillaguamish River channel pushes north.

How long did the slide near Oso Washington last from start to finish?

Ground activity surrounding the slide The initial collapse began at 10:37:22 a.m. local time (PDT; 17:37:22 UTC), lasting approximately 2.5 minutes.

What is the deadliest landslide in history?

Deadliest Landslides In Recorded History

Huaraz Debris Flows, Ancash, Peru, December 1941 (5,000 deaths)
62 Nevado Huascaran Debris Fall, Ranrahirca, Peru, January 1962 (4,500 deaths)
Khait Landslide, Tajikstan, July 1949 (4,000 deaths))
Diexi Slides, Sichuan, China, August 1933 (3,000+ deaths)

When did the Oso landslide happen in Washington State?

The Oso landslide, also known as the SR 530 landslide, occurred in northwest Washington state on March 22, 2014, leading to devastating loss of life and destruction of property. Landslide debris blocked the North Fork Stillaguamish River, destroyed about 40 homes and other structures,…

How often do landslides occur in the United States?

Landslides occur in all 50 states and U.S. territories and on average cause $1-2 billion in damages and more than 25 fatalities each year. The goal of USGS landslide science is to help answer questions such as where, when, and how often landslides occur and how fast and far they might move.

When did the North Fork Stillaguamish River Slide?

Shortly after the slide, USGS scientists identified and published a paper describing the North Fork Stillaguamish River valley and the geologic evidence they had uncovered showing the occurrence of past landslides, some of which traveled in a similar pattern to that of the 2014 landslide.

How big was the landslide in Steelhead Haven?

The slide dammed the North Fork Stillaguamish River to a depth of as much as 25 feet, forming a temporary lake 2.5 miles long, which flooded houses and other structures in Steelhead Haven.

How many people were killed in Oso landslide? 41 2014 Oso mudslide/Number of deaths How many structures were destroyed in the Oso Washington landslide? 40 homes Landslide debris blocked the North Fork Stillaguamish River, destroyed about 40 homes and other structures, and buried nearly a mile of State Route 530. Most tragically, it caused 43…