Volcanic eruptions can hurl hot rocks for at least 20 miles. Floods, airborne ash, or noxious fumes can spread 100 miles or more. If you live near a known volcano, active or dormant, be ready to evacuate at a moment’s notice. Learn about your community warning systems.
Be prepared for these disasters that can be spawned by volcanoes.
During a Volcanic Eruption
Avoid areas downwind of the volcano.
Mudflows are powerful “rivers” of mud that can move faster than people can walk or run. Mudflows occur when rain falls through ash-carrying clouds or when rivers are dammed during an eruption. They are most dangerous close to stream channels. When you approach a bridge, first look upstream. If a mudflow ls approaching or moving beneath the bridge, do not cross the bridge. The power of the mudflow can destroy a bridge very quickly.
(See more about Mudflows in the Landslides & Mudflows section.)
After an Eruption
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