What caused the Oso mudslide?
Oso mudslide and recovery timeline 1900s – Seasonal high water begins eroding the hill that eventually gave way in the 2014 mudslide. The Stillaguamish River channel pushes north. 1930s to 1950s – Logging is the economic engine of the Oso area. Some of the logged area is sensitive to shifting because of groundwater.
How long did the Oso landslide last?
approximately 2.5 minutes
Ground vibrations generated by the Oso landslide were recorded at several regional stations and subsequently analyzed by the Pacific Northwest Seismic Network (PNSN). 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 most famous mudslide?
Famous Mudslides By Fatalities
| Rank | Mudslide Name | Location |
|---|---|---|
| 1 | 1999 Vargas Tragedy | Vargas, Venezuela |
| 2 | 1985 Armero Tragedy | Tolima, Colombia |
| 3 | 2013 India Monsoons | Uttarakhand, India |
| 4 | 2010 Gansu Mudslide | Zhouqu County, China |
Was the Oso landslide caused by an earthquake?
Data collected by the PNSN shows a magnitude 1.1 earthquake on that date in the vicinity of the Oso landslide (about 2 ±0.8 km to the northeast), at a depth of 3.9 ±1.9 km. Regardless, the United States Geological Survey (USGS) determined the slide was not caused by seismic activity.
How many bodies were recovered from the Snohomish County landslide?
The Snohomish County Medical Examiner’s Office identified all 42 bodies recovered from the site of the March 22 landslide near Oso, Wash. In connection to the landslide, the county listed one person as still missing. The active search in the debris was suspended on April 28.
Who are the 10 people that died in the Washington Landslide?
Who they were: Washington landslide deaths 1 Christina Jefferds, 45. Christina A. 2 Sanoah Huestis, 4 months. 3 Stephen Neal, 55. 4 Bill Welsh, 66. 5 Linda McPherson, 69. 6 Kaylee Spillers, 5. 7 Shane Ruthven, 41. 8 Lewis Vandenburg, 71. 9 Summer Raffo, 36. 10 Joseph Miller, 47.
How many people died in the Stillaguamish River Slide?
On July 22, 2014 the Snohomish County Sheriff’s Office confirmed 43 fatalities after remains of the final victim had been located and identified. The slide blocked the North Fork of the Stillaguamish River, causing it to back up eastward.