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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.

Filter Total Items: 1796
Volcano Watch — Viewing Hawai`i's lava safely - a reminder

Volcano Watch — Viewing Hawai`i's lava safely - a reminder

The recent serious injury incurred by a visitor to the Mother's Day lava flow field prompted this article. Shortly after midnight on March 10, a...

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Volcano Watch — Two eruptions at Kīlauea's summit in 1982 end an era

Volcano Watch — Two eruptions at Kīlauea's summit in 1982 end an era

The summit of Kīlauea has been quiet for more than 20 years. Pu`u `O`o and Kupaianaha have hogged the limelight since January 3, 1983. Two eruptions...

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Volcano Watch — Collecting Data on Earthquake Effects

Volcano Watch — Collecting Data on Earthquake Effects

One morning, you're awakened by a violent shaking of your bed; you hear the glass jalousies rattle, and the dog barks hysterically. In the seconds it...

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Volcano Watch — Active lava flows and new ocean entry provide prime viewing opportunities

Volcano Watch — Active lava flows and new ocean entry provide prime viewing opportunities

The past ten days have seen lava cross the Chain of Craters Road to form a new lava entry at the ocean's edge. Wildfires of the Panau Iki blaze...

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Volcano Watch — Monitoring Kīlauea's eruption: how close to the action is close enough?

Volcano Watch — Monitoring Kīlauea's eruption: how close to the action is close enough?

Hawai`i is often described as the ideal setting for studying active volcanic processes. After all, where else can you find a "drive in" volcano that...

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Volcano Watch — The Puhimau thermal area is gradually enlarging

Volcano Watch — The Puhimau thermal area is gradually enlarging

Little more than a mile down the Chain of Craters Road from Crater Rim Drive, a large tract of bare ground suddenly appears on the right, and curious...

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Volcano Watch — A Break From the Routine on Kīlauea

Volcano Watch — A Break From the Routine on Kīlauea

For more than twenty years, Kīlauea has been erupting almost continuously. In the early years, the eruption alternated between dramatic fountains and...

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Volcano Watch — Inflation of Mauna Loa Volcano slows

Volcano Watch — Inflation of Mauna Loa Volcano slows

The inflation of Mauna Loa Volcano that started last year appears to be slowing down. From May 2002 until very recently, continuously recording...

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Volcano Watch — Mahalo for helping us celebrate Pu`u `O`o's 20th Anniversary

Volcano Watch — Mahalo for helping us celebrate Pu`u `O`o's 20th Anniversary

On January 4, as lava flowed from the Pu`u `O`o cone 11 km (7 miles) to the south shoreline of Kilauea Volcano, the staff of the Hawaiian Volcano...

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Volcano Watch — Kīlauea Iki's lava lake has finally crystallized

Volcano Watch — Kīlauea Iki's lava lake has finally crystallized

Forty-three years have passed since the November 1959 Kīlauea Iki eruption. This eruption, which lasted 36 days, is perhaps best known for lava...

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Volcano Watch — What if there'd been no Pu‘u ‘O‘o eruption?

Volcano Watch — What if there'd been no Pu‘u ‘O‘o eruption?

The 20th birthday of the Pu`u O`o eruption has come and gone, with lots of excellent media coverage. Let's take a different tack and think about what...

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Volcano Watch — The year in earthquake review

Volcano Watch — The year in earthquake review

As we approach the end of 2002, we pause to look back at the year. What can we say about earthquakes in 2002?

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