Volcanoes
National Park Service
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Lava Tube Formation
2 minutes
Posted Mar 14, 2013 at 4:23 pm.
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Hawai'i Volcanoes NP: What is a lava tube? How does it form? Watch this video for answers to these questions.
Next
Lava Flows: Hotspots to Volcanoes
← See all 5 episodes of Volcanoes
