After the 2011 eruption, dark black flow in the right is completely covered by a layer of glass that forms when lava, at more than 2,000 deg F, meets the near-freezing seawater.
After the 2011 eruption, dark black flow in the right is completely covered by a layer of glass that forms when lava, at more than 2,000 deg F, meets the near-freezing seawater.