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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 — Coming soon—Volcano Awareness Month and the Hawaiian Volcano Observatory's centennial celebration

Volcano Watch — Coming soon—Volcano Awareness Month and the Hawaiian Volcano Observatory's centennial celebration

January 2012 is just around the corner, and staff at the USGS Hawaiian Volcano Observatory (HVO) are busily preparing for the many public events...

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Photo and Video Chronology - Kīlauea - December 6, 2011

Photo and Video Chronology - Kīlauea - December 6, 2011

Awesome views of the Pu‘u ‘Ō‘ō cone and crater showing the fume sources.

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Photo and Video Chronology - Kīlauea - December 2, 2011

Photo and Video Chronology - Kīlauea - December 2, 2011

Active pāhoehoe, fed by a lava tube originating at Pu‘u ‘Ō‘ō, has been migrating downslope within the Royal Gardens subdivision.

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Volcano Watch — A look back at Mauna Loa

Volcano Watch — A look back at Mauna Loa

Hikers reaching the rim of Moku‘āweoweo, Mauna Loa's summit caldera, can gaze across the expanse of lava—erupted in 1984—that covers most of the...

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Volcano Watch — How to watch world volcanoes on the web

Volcano Watch — How to watch world volcanoes on the web

During the past several weeks, many volcanoes have been active around the world. While we focus on our home volcano, it can be very interesting to...

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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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