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Videos showing wall and rim collapses of Halema‘uma‘u.

Photos of a channelized flow erupted from the vent on the floor of Pu‘u ‘Ō‘ō crater and views from the active lava surface in Halema‘uma‘u crater.

Vog is made up of two principal components—sulfur dioxide gas, emitted by the active Kīlauea volcano, and acid sulfate aerosols, produced by a...

Time-lapse movie showing lava erupting from vents on the floor of Pu‘u ‘Ō‘ō crater.

The Hawaiian Islands are home to numerous beautiful landforms. The islands themselves are volcanoes, but these volcanoes are speckled with secondary...

Photos of the lava surface in the Halema‘uma‘u Overlook vent and a close-up view of the northeast vent in Pu‘u ‘Ō‘ō, showing spattering.

Photos and video of the erupting vent on the east wall of Pu‘u ‘Ō‘ō Crater. 

Twenty years ago, Mount Pinatubo awakened from a long sleep to produce Earth's second largest eruption in more than half a century. Volcanologists...

Video of another series of collapse on the floor of Halema‘uma‘u.

HAWAI‘I ISLAND, Hawai‘i — At 8:42 a.m. (HST) Monday morning, February 14, 2011, a section of rock from the north wall of Kīlauea Volcano's summit vent...