Hawai‘i Volcanoes 2016

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Steam vents at Wahinekapu (Steaming Bluff) form along a system of relatively shallow fractures associated with normal faults in Kīlauea Caldera. These fractures lie within the caldera, and release steam as groundwater encounters hot rock below.

All images copyright © 2016 F.W. Vollmer and may not be used without permission.