SpeedrooHow fast was the Mount St. Helens landslide?
130 mphAbout 210 km/h · Race
The 1980 landslide, the biggest in recorded history, raced down at about 110 mph (180 km/h) to 155 mph (249 km/h).
That's about 3.8 times a red kangaroo's top speed of about 35 mph (56 km/h).
🌋130 mph
🏃♂️marathon record pace
By speed: the Mount St. Helens landslide is about 10× faster than marathon record pace.
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Many real things vary, so we use a typical or official figure. Spotted a mistake? Email [email protected].