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Lava spilling and spattering from East Pond Vent and feeding lava flow that is filling east end of Pu`u `O`o's crater. Cone at East Pond Vent is about 8 m high.
Lava wells from under crust of ponded lava fed by East Pond Vent. This process, called crustal overturning, is common on ponded lava. It refreshes the crust, creating smooth surfaces that erase the ropy surface texture of typical pahoehoe.
Two views looking east of filling crater of Pu`u `O`o.