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Thermal image sequence of summit lava lake motion.

Lava flows at forest boundary northeast of Pu‘u ‘Ō‘ō.

The Earth's surface, oceans, and atmosphere are readily accessible to direct exploration.

The Hawaiian Volcano Observatory will remain operational during the lapse of federal government appropriations.

The Hawaiian Volcano Observatory will remain operational during the lapse of federal government appropriations.

This week, the Hawaiian Volcano Observatory is saying goodbye to two good friends: Jessica Johnson and Ben McLeod. Jess and Ben arrived in Hawai‘i in...

HAWAI‘I ISLAND, Hawaii — Hawaii’s long history of destructive earthquakes and actions that residents can take to reduce injury during the next one...

Get ready! The Great Hawaii ShakeOut will "rumble" across the islands at 10:17 a.m., HST, on October 17, 2013.

Kahauale‘a 2 source vent and Pu‘u ‘Ō‘ō, views of Kahauale‘a 2 flow, and the Halema‘uma‘u lava lake.
 

Despite reports to the contrary, Mauna Loa is still the largest ACTIVE volcano on Earth. The volcano off the east coast of Japan, which made the news...