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Daily updates about ongoing eruptions, recent images and videos of summit and East Rift Zone volcanic activity, maps, and data about recent earthquakes in Hawaii are posted on the HVO website. 

Volcano Watch is a weekly article and activity update written by U.S. Geological Survey Hawaiian Volcano Observatory scientists and colleagues.

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Volcano Watch — Volcanic selenium and sulfur - a delicate balance

Volcano Watch — Volcanic selenium and sulfur - a delicate balance

A stroll through any local health food store will reveal dozens of vitamin and mineral supplements lining the shelves. An alert shopper perusing...

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Volcano Watch — Kīlauea's School of Magma and Motion trumps Hogwarts?

Volcano Watch — Kīlauea's School of Magma and Motion trumps Hogwarts?

For the Harry Potter fans of the world, the stroke of midnight on July 21 was a momentous event. The final episode of J.K. Rowling's tale centered on...

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USGS HVO Press Release — New Fissure Eruption East of Pu‘u ‘Ō‘ō Crater

USGS HVO Press Release — New Fissure Eruption East of Pu‘u ‘Ō‘ō Crater

For the first time since February 7, 1992, lava is erupting east of Pu‘u ‘Ō‘ō crater. Just before midnight, activity at Pu‘u ‘Ō‘ō crater slowed down...

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Volcano Watch — Kīlauea update: An eruptive sequel with a new twist?

Volcano Watch — Kīlauea update: An eruptive sequel with a new twist?

Volcano watchers, like recent movie-goers, are enjoying another summer sequel. Amidst new renditions of popular flicks like Spiderman, Pirates, Harry...

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Photo and Video Chronology - Kīlauea - July 13, 2007

Photo and Video Chronology - Kīlauea - July 13, 2007

Refilling of Pu‘u ‘Ō‘ō crater.

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Volcano Watch — "It's like déjà vu all over again!"

Volcano Watch — "It's like déjà vu all over again!"

Many people are watching the filling of Pu`u `O`o crater live via a webcam on the rim. Since July 4, traffic to our web site has quadrupled, and we...

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Photo and Video Chronology - Kīlauea - July 8, 2007

Photo and Video Chronology - Kīlauea - July 8, 2007

Refilling of Pu‘u ‘Ō‘ō crater.

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Photo and Video Chronology - Kīlauea - July 5, 2007

Photo and Video Chronology - Kīlauea - July 5, 2007

Lava lake draining event during Pu‘u ‘Ō‘ō refilling.

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Volcano Watch — Lava back in the Pu‘u ‘Ō‘ō crater as scientists mull over Kīlauea's future

Volcano Watch — Lava back in the Pu‘u ‘Ō‘ō crater as scientists mull over Kīlauea's future

The answer to the question asked by Hawai`i's residents and volcano enthusiasts since June 19—where is Kīlauea going to erupt next—is clear, now that...

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USGS HVO Press Release — Lava Returns to Pu‘u ‘Ō‘ō Crater

USGS HVO Press Release — Lava Returns to Pu‘u ‘Ō‘ō Crater

The presence of new lava in the bottom of Pu‘u ‘Ō‘ō crater was confirmed this afternoon by Hawaiian Volcano Observatory (HVO) scientists.

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Volcano Watch — Magma, magma, who's got the magma?

Volcano Watch — Magma, magma, who's got the magma?

Last week's Volcano Watch described HVO's most recent and exciting challenge: to figure out what might happen next with Kīlauea's marked change in...

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Volcano Watch — What do Father's Day and volcanic rift zones have in common?

Volcano Watch — What do Father's Day and volcanic rift zones have in common?

The rift zones of Hawaiian volcanoes are long strips 1-2 miles wide in which eruptions can occur. They radiate from the volcanic summits, where...

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