River of fire: Lava streams from the Hawaiian volcano Kilauea in 1959.
Although it may look bad, geologists consider such eruptions to be 'quiet'. Explosive eruptions like supervolcanoes pose a much greater threat to humans. (photo: USGS)
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River of fire: Lava streams from the Hawaiian volcano Kilauea in 1959. Although it may look bad, geologists consider such eruptions to be 'quiet'. Explosive eruptions like supervolcanoes pose a much greater threat to humans. (photo: USGS)
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