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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 — 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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USGS HVO Press Release — Hazardous Sulfur Dioxide Concentrations Measured at Kīlauea Volcano

USGS HVO Press Release — Hazardous Sulfur Dioxide Concentrations Measured at Kīlauea Volcano

Today, HVO scientists measured concentrations greater than 10 ppm in a broad area adjacent to Halema‘uma‘u crater. Sulfur Dioxide gas is persistently...

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USGS HVO Press Release — New Lava outbreak in Upper East Rift Zone of Kīlauea Volcano

USGS HVO Press Release — New Lava outbreak in Upper East Rift Zone of Kīlauea Volcano

The intrusion of magma that was signaled by a swarm of earthquakes and rift zone widening over the last two days has finally made it to the surface. 

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USGS HVO Press Release — Early Morning Earthquake Swarm Beneath Kīlauea's Upper East Rift Zone

USGS HVO Press Release — Early Morning Earthquake Swarm Beneath Kīlauea's Upper East Rift Zone

About 70 shallow earthquakes in 2 hours occurred beneath the upper east rift zone of Kīlauea early this morning.

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Volcano Watch — Idaho's Craters of the Moon shares similar traits with Kīlauea

Volcano Watch — Idaho's Craters of the Moon shares similar traits with Kīlauea

One of the most fascinating things about living on, or visiting, the Big Island is our proximity to active volcanoes and the wide variety of...

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Photo and Video Chronology - Kīlauea - June 10, 2007

Photo and Video Chronology - Kīlauea - June 10, 2007

Collapse and refilling of Pu‘u ‘Ō‘ō crater.

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Volcano Watch — High Chief Keli`ikuku's pride devastated by unusually long Kīlauea eruption

Volcano Watch — High Chief Keli`ikuku's pride devastated by unusually long Kīlauea eruption

In the mid-19th century, Kona chief Kanuha told French explorer Jules Remy the story of Keli`ikuku, an ancient high chief of Puna.

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Volcano Watch — Recent Mauna Loa "prediction" does not change HVO assessment

Volcano Watch — Recent Mauna Loa "prediction" does not change HVO assessment

A few weeks ago, each of the local newspapers carried a story about a study, released in the journal Science, predicting that the next Mauna Loa...

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Volcano Watch — State of Hawai`i geologic map available online

Volcano Watch — State of Hawai`i geologic map available online

A new geologic map of the State of Hawai`i became publicly available this week. The publication is free online as U.S. Geological Survey Open-File...

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