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Excluding landslides caused by volcanic eruptions, earthquakes or dam collapses, the Oso slide is the deadliest single landslide event in United States history. [ 12 ] The Hazel Landslide has a history of instability dating to 1937.
Caused by M 7.5 earthquake, the landslide caused a megatsunami with a run-up of 524 metres (1,719 ft) in Lituya Bay. [89] 17 Aug 1959 Madison Canyon, southwestern Montana, United States 1959 Hebgen Lake earthquake: 38 MCM 28–36 Caused by M 7.2 to 7.5 earthquake. Dammed the Madison River, creating Quake Lake. [90] 22 May 1960 Riñihue Lake, Chile
Rockslides or landslides can have disastrous consequences, both immediate and delayed. The Oso disaster of March 2014 was a landslide that caused 43 fatalities in Oso, Washington, US. [26] Delayed consequences of landslides can arise from the formation of landslide dams, as at Thistle, Utah, in April 1983. [27] [28]
Landslides occur around the world and have helped shape the Earth as we know it. The landslide that destroyed a rural neighborhood and claimed 43 lives in Oso, northeast of Seattle, 10 years ago ...
The Oso landslide, which occurred on March 22, 2014, is remembered as the deadliest landslide in United States history. The town had experienced heavy rainfall, causing a surge of mud and debris ...
The Oso Landslide, the deadliest in U.S. history, killed 43 people a decade ago north of Seattle. ... Despite the devastation they caused, the Gray and Oregon Road fires received relatively little ...
The 2014 Oso landslide occurred on the North Fork of the Stillaguamish. On December 5, 2023, the river crested at 21.34 feet (6.50 m) near Arlington and set a new record amid regional floods . [ 11 ] [ 12 ]
Landslides can be triggered by many, sometimes concomitant causes. In addition to shallow erosion or reduction of shear strength caused by seasonal rainfall, landslides may be triggered by anthropic activities, such as adding excessive weight above the slope, digging at mid-slope or at the foot of the slope. Often, individual phenomena join to ...