アメリカ内務省のインスタグラム(usinterior) - 11月9日 00時43分

There are 170 active or potentially active volcanoes in the United States.

@USGSvolcanoes monitors volcanic activity across the country and delivers forecasts, warnings and information about volcano hazards.

Volcanoes come in many shapes and sizes:

🌋 Tall and pointy (Composite volcano, @MountRainierNPS)

🌋 Short and round (Cinder cone, @LassenNPS)

🌋 High and wide (Shield, @hawaiivolcanoesnps)

🌋 Expansive and flat (Caldera, @YellowstoneNPS)

Have you been to any public lands that have a volcano?

Video by @hawaiivolcanoesnps

Video Description: A “fire hose” of lava streaming into the ocean on January 3, 2017.

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• LassenNPS
• MountRainierNPS
• USGSvolcanoes
• YellowstoneNPS