USGS Volcanoes🌋 (@usgsvolcanoes) 's Twitter Profile
USGS Volcanoes🌋

@usgsvolcanoes

Delivering official updates and info for U.S. volcanoes. usgs.gov/vhp email: [email protected]

ID: 761257471952379904

linkhttp://volcanoes.usgs.gov calendar_today04-08-2016 17:48:19

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USGS Volcanoes🌋
@usgsvolcanoes

3 months ago

#45YearsAgo at #MountStHelens: M5.1 EQ, colossal landslides. Magma & hot fluids explode, surge outward like hot hurricane; column rises, ash falling. Hummocky debris flow buries valley. Snowpack melts, mud flows converge. 9-hr eruption. Everything is changed. #MSH45

#45YearsAgo at #MountStHelens: M5.1 EQ, colossal landslides. Magma & hot fluids explode, surge outward like hot hurricane; column rises, ash falling. Hummocky debris flow buries valley. Snowpack melts, mud flows converge. 9-hr eruption. Everything is changed. #MSH45