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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: 1817
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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Volcano Watch — Scientists explore Mauna Loa's submarine flanks

Volcano Watch — Scientists explore Mauna Loa's submarine flanks

Last month, some readers may have noticed a ship cruising back and forth off South Point and the South Kona districts of the Island of Hawai`i.

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Volcano Watch — 'Tis the season for tinsel and trees: celebrating Hawai`i's own unusual trees

Volcano Watch — 'Tis the season for tinsel and trees: celebrating Hawai`i's own unusual trees

This is the season when the aroma of pine and fir greets KTA supermarket shoppers as they arrive to buy their fish and poi. Although more than 60,000...

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Volcano Watch — Coexisting with volcanoes

Volcano Watch — Coexisting with volcanoes

Volcanoes have been in the news a lot lately: Etna (Italy), Reventador (Ecuador), Pago (New Britain, Papua New Guinea), Popocatepetl (Mexico)-even our...

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