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Evolving Lava Tube System Spawns Surface Flows that Reach the Ocean

Detailed Description

Lava flow on coastal plain of Kīlauea's south coast, October 24, 2009. This flow is fed by the easternmost (right-hand side) lava-tube system descending the pali in the background. The tube systems are marked by the alignment of bluish fume escaping from skylights and cracks.