What caused the Washington mudslide?

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…

When was the mudslide in Washington state?

March 22, 2014
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.

How much did the Oso landslide cost?

The Nisqually earthquake cost the State approximately $34.3 million in damage. On March 22, 2014, a deep-seated landslide occurred in Oso, Washington. The landslide significantly impacted a community called Steelhead Haven, resulting in forty- three fatalities (Wartman 2016).

What was the worst mudslide?

Famous Mudslides By Fatalities

Rank Mudslide Name Estimated Fatalities
1 1999 Vargas Tragedy 30,000
2 1985 Armero Tragedy 20,000
3 2013 India Monsoons 6,000
4 2010 Gansu Mudslide 1,471

Where was the big mudslide in Washington state?

On March 22, 2014, a deadly mudslide devastated the Washington state community of Oso — 60 miles north of Seattle — with up to 70 feet of mud, swallowing part of the Stillaguamish River and a mile-long stretch of state highway 530. Eyewitnesses say a towering wall of mud roared loudly as it raced through the valley.

What was the worst 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)

What states do mudslides occur?

Mudslides can happen in all 50 states, but there are certain places where mudslides are more prone to happen. For example, on the West Coast, states like California, Washington, and Oregon see more mudslides than other states because of their hilly terrain.

Is there a landslide in Washington?

Landslides are common in Washington state, with many occurring annually in the Puget Sound area , especially along the Sound’s steep shoreline bluffs. Landslide areas are deemed geologically-hazardous, environmentally-critical areas under the state Growth Management Act.

What is a landslide and what is a mudslide?

A landslide is a large movement of the material of varying particle size down a slope or sideways along the landscape. A mudslide is a mass movement of small particles that are partly liquefied . Landslides include the movement of any particle size from large boulders to fine soils.