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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 — An Exciting End to June at Kīlauea

Volcano Watch — An Exciting End to June at Kīlauea

One of the most surprising aspects of the current summit eruption at Kīlauea Volcano, which started in March of this year, is that there has been...

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USGS HVO Press Release — HVO Geophysicists Doing Routine Check of Haleakalā Volcano

USGS HVO Press Release — HVO Geophysicists Doing Routine Check of Haleakalā Volcano

Hawaiian Volcano Observatory geophysicists are conducting a routine GPS survey of Haleakalā Volcano on the island of Maui this week as part of the U.S...

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Volcano Watch — Surprise Eruption in Chile Sparks Interest in National Volcano Early Warning System

Volcano Watch — Surprise Eruption in Chile Sparks Interest in National Volcano Early Warning System

During the evening of April 30, in a distant volcanic region in the southern Andes about 1050 km (650 miles) south of Santiago, Chile, strong ground...

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Photo and Video Chronology - Mauna Loa - July 2, 2008

Photo and Video Chronology - Mauna Loa - July 2, 2008

Photos of the summit caldera of Mauna Loa.

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Volcano Watch — HVO Hot Shots See the Heat at Kīlauea

Volcano Watch — HVO Hot Shots See the Heat at Kīlauea

If you keep an eye on the Kīlauea update images posted on the HVO website, you may have noticed over the last few months that we have occasionally...

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Volcano Watch — And You Thought You Were Standing Still

Volcano Watch — And You Thought You Were Standing Still

People who live in areas with high earthquake activity are familiar with the sensation of the earth shaking beneath their feet during an earthquake...

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Volcano Watch — The Puzzling Plume

Volcano Watch — The Puzzling Plume

The new Halema`uma`u Overlook vent is now only three months old, and the accompanying plume is relatively small in terms of previous explosive...

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Volcano Watch — What to worry about in Kīlauea volcanic emissions?

Volcano Watch — What to worry about in Kīlauea volcanic emissions?

Even with the focus on sulfur dioxide gas (SO2) and vog, inquisitive individuals have asked about other things emitted by Kīlauea volcano. Here's the...

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Volcano Watch — The Rooftop View at Pele's House is Magnificent

Volcano Watch — The Rooftop View at Pele's House is Magnificent

Since March 12, when a billowing cloud of fume erupted from the east wall of Halema`uma`u, thousands of Hawai`i residents and visitors have gazed out...

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Volcano Watch — Murky Crystal Ball Suggests Potential for Voggy Future at Kīlauea

Volcano Watch — Murky Crystal Ball Suggests Potential for Voggy Future at Kīlauea

As the vog wears on us, it might be a good time to get out the crystal ball and try to guess what might happen in the next months, years, and even...

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Volcano Watch — Pele's Cooking More Than Vog -- "Precious" Jewels Also Stewing in Her Cauldron

Volcano Watch — Pele's Cooking More Than Vog -- "Precious" Jewels Also Stewing in Her Cauldron

After the series of explosions at Halema`uma`u Crater, the overlook area appeared to be a stark, boulder-strewn field completely devoid of life.

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Volcano Watch — Ashes, Ashes, All Fall Down

Volcano Watch — Ashes, Ashes, All Fall Down

Recent activity at Kīlauea's summit caused HVO scientists to hit the books, because such behavior hasn't been previously documented.

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