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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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Photo and Video Chronology - Kīlauea - November 21, 2011

Photo and Video Chronology - Kīlauea - November 21, 2011

A thin portion of the roof over the lava tube reveals the lava stream.

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Volcano Watch — Be prepared for the zombie apocalypse—and other emergencies

Volcano Watch — Be prepared for the zombie apocalypse—and other emergencies

Popular cultural phenomena come and go: Elvis Presley, Mickey Mouse, and hula hoops have all come in and out of fashion repeatedly. But for many...

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Volcano Watch — Has Halema‘uma‘u's lava lake changed in 100 years?

Volcano Watch — Has Halema‘uma‘u's lava lake changed in 100 years?

With the 100th anniversary of the Hawaiian Volcano Observatory fast approaching, many scientists at the observatory are thinking about how the current...

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Photo and Video Chronology - Kīlauea - November 10, 2011

Photo and Video Chronology - Kīlauea - November 10, 2011

A large skylight on the lava tube is supplying lava to surface flows north of Royal Gardens subdivision.

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Volcano Watch — Pu‘u ‘Ō‘ō quietly and slowly building new flow field

Volcano Watch — Pu‘u ‘Ō‘ō quietly and slowly building new flow field

Without the dramatic flourish of recent events, lava is quietly erupting from Kīlauea's newest fissure, which opened September 21 on the east rim of...

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Photo and Video Chronology - Kīlauea - November 3, 2011

Photo and Video Chronology - Kīlauea - November 3, 2011

The active episode 61 pāhoehoe flows of Pu‘u ‘Ō‘ō.

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Volcano Watch — Netquakes and Shakemaps—How you can get involved in HVO seismology

Volcano Watch — Netquakes and Shakemaps—How you can get involved in HVO seismology

On October 19, 2011, a magnitude-4.5 earthquake struck on the northwest flank of Mauna Kea at 2:10 p.m., HST, followed by more than 50 aftershocks...

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Photo and Video Chronology - Kīlauea - October 25, 2011

Photo and Video Chronology - Kīlauea - October 25, 2011

High aerial view of the active lava channel of Pu‘u ‘Ō‘ō crater.

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Volcano Watch — Columnar jointing provides clues to cooling history of lava flows

Volcano Watch — Columnar jointing provides clues to cooling history of lava flows

Above Hilo’s iconic Rainbow Falls on the Wailuku River is Boiling Pots. This area, named for the many "potholes" in the river bed, churns and roils...

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USGS HVO Press Release — Magnitude-4.5 Earthquake on the North Flank of Mauna Kea

USGS HVO Press Release — Magnitude-4.5 Earthquake on the North Flank of Mauna Kea

HAWAI‘I ISLAND, Hawai‘i — The U.S. Geological Survey's Hawaiian Volcano Observatory (HVO) recorded a magnitude-4.5 earthquake located beneath the...

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Volcano Watch — Volcanic Gas studies in Hawaii—then and now

Volcano Watch — Volcanic Gas studies in Hawaii—then and now

What a difference a century (or even a few years) can make! As noted in an earlier Volcano Watch (June 5, 2011), 1911 was a dynamic year for science...

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Photo and Video Chronology - Kīlauea - October 7, 2011

Photo and Video Chronology - Kīlauea - October 7, 2011

The active pāhoehoe flows of Pu‘u ‘Ō‘ō.

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