Lava erupted from both vents, scientists said, with fountains from the south vent reaching over 600 feet high. Fountains from the north vent, meanwhile, remained below 200 feet high.

Scientists at the Hawaiian Volcano Observatory said that the high fountain phase of “episode 16” had begun as of 10:24 a.m., about 12 hours after the start of the eruption. Fountaining from ...