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Volcano Watch

Volcano Watch is a weekly article and activity update written by U.S. Geological Survey Hawaiian Volcano Observatory scientists and affiliates. 

The USGS Hawaiian Volcano Observatory will not publish Volcano Watch articles during the lapse in federal government appropriations. 

Filter Total Items: 1752
Volcano Watch — Molten Lava Can Boil Seawater Completely Dry

Volcano Watch — Molten Lava Can Boil Seawater Completely Dry

The lava ocean entry at East Lae`apuki, on the southern shoreline of Kīlauea Volcano, has been active for 15 months. Lava flows rapidly from Pu`u `O`o...

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Volcano Watch — Past success and future planning reduce volcanic risk and save lives

Volcano Watch — Past success and future planning reduce volcanic risk and save lives

Five volcanoes erupting in the United States within the past two months - Kīlauea, Mount St. Helens, and Augustine, Mt. Cleveland, and possibly...

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Volcano Watch — A volatile view of CO2 from atop Kīlauea's magma chamber

Volcano Watch — A volatile view of CO2 from atop Kīlauea's magma chamber

On cool, still mornings at the top of Kīlauea, visitors looking across the summit caldera can see a palpable example of the Earth breathing. Wisps of...

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Volcano Watch — Origin of the Big Island's Great Valleys Revealed in Hawaiian chant

Volcano Watch — Origin of the Big Island's Great Valleys Revealed in Hawaiian chant

An old Hawaiian chant tells of a mysterious, powerful place in North Kohala, where two streams begin side by side but run in opposite directions and...

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Volcano Watch — Alaskan volcano sends ashy plumes thousands of feet into the air

Volcano Watch — Alaskan volcano sends ashy plumes thousands of feet into the air

A significant volcanic eruption is in progress right now in Alaska, though it hasn't received much media attention. Augustine Volcano, named by...

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Volcano Watch — HVO bids a fond farewell to a geologist and a friend

Volcano Watch — HVO bids a fond farewell to a geologist and a friend

HVO loses one of its most versatile research scientists next week, when Rick Hoblitt returns to his home base, the Cascades Volcano Observatory (CVO)...

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Volcano Watch — Revolution in thinking about Kīlauea's explosions comes to HVO: Part 2

Volcano Watch — Revolution in thinking about Kīlauea's explosions comes to HVO: Part 2

The past five years, especially the past 18 months, have seen profound changes in the way HVO scientists view Last week's Volcano Watch highlighted...

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Volcano Watch — Revolution in thinking about Kīlauea's explosions comes to HVO: Part 1

Volcano Watch — Revolution in thinking about Kīlauea's explosions comes to HVO: Part 1

The past five years, especially the past 18 months, have seen profound changes in the way HVO scientists view Kīlauea's explosive potential.

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Volcano Watch — 2005: Another relatively quiet year for Hawaiian earthquakes

Volcano Watch — 2005: Another relatively quiet year for Hawaiian earthquakes

It has become somewhat of a New Year's habit, in a January Volcano Watch report prepared by the U. S. Geological Survey's Hawaiian Volcano Observatory...

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Volcano Watch — Volcanic ash was main danger from eruptions in 2005

Volcano Watch — Volcanic ash was main danger from eruptions in 2005

As we enter the New Year with the eruption of Kīlauea Volcano still going strong after 23 years, it is important to remember the world's other...

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Volcano Watch — Kīlauea's Pu`u `O`o eruption: 2005 highlights

Volcano Watch — Kīlauea's Pu`u `O`o eruption: 2005 highlights

Many eruptions are brief affairs. The volcano wakes up, erupts for a few days to a few months, then goes back to sleep. When the Pu`u `O`o eruption...

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Volcano Watch — How'd you like to spend Christmas on Christmas Island?

Volcano Watch — How'd you like to spend Christmas on Christmas Island?

If you ever do spend Christmas on that South Pacific island, make sure Santa knows where to land his canoe of presents for you, as there are actually...

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Volcano Watch — Dr. George Walker studied nearly every aspect of volcanoes

Volcano Watch — Dr. George Walker studied nearly every aspect of volcanoes

Last week, Earth Scientists from all over the world gathered for the annual American Geophysical Union fall meeting in San Francisco. Researchers...

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Volcano Watch — Frozen in time: ice and snow yield secrets from the past

Volcano Watch — Frozen in time: ice and snow yield secrets from the past

Hawai`i Island residents and visitors eagerly awaiting the season's first snowfall were rewarded this past week. By Wednesday morning, a light dusting...

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Volcano Watch — What are our island's worst-case eruption scenarios (part 2)?

Volcano Watch — What are our island's worst-case eruption scenarios (part 2)?

What might a future eruption in a residential neighborhood be like? We can get our best answer by examining past eruptions in the area such as the...

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Volcano Watch — What are our island's worst-case eruption scenarios (part 1)?

Volcano Watch — What are our island's worst-case eruption scenarios (part 1)?

In the aftermath of Hurricane Katrina's devastation of the Gulf coast, there has been much discussion of the value of planning for worst-case...

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Volcano Watch — New age found for Kaho`olawe's most recent eruptions

Volcano Watch — New age found for Kaho`olawe's most recent eruptions

Two questions commonly asked of any volcano are the age of its youngest eruption and the frequency of eruptive events. For the volcano that forms the...

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Volcano Watch — Volcanic eruptions temporarily reduce the effects of global warming

Volcano Watch — Volcanic eruptions temporarily reduce the effects of global warming

We are familiar with the effects that volcanoes have on our atmosphere and climate. Previous Volcano Watch articles have discussed how emissions of...

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Volcano Watch — Rock piles tell stories we don't want to hear

Volcano Watch — Rock piles tell stories we don't want to hear

Many Volcano Watch articles tell stories of bygone eras, stories literally squeezed out of rocks. Some of the stories about the more recent eruptions...

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Volcano Watch — The origins of Pu`u Mahana are not crystal clear

Volcano Watch — The origins of Pu`u Mahana are not crystal clear

Pu`u Mahana is a famous attraction on the southeast coast of the island of Hawai`i. The literal translation of Pu`u Mahana is "warm hill." People who...

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Volcano Watch — Volcano watching at Mauna Loa is a BIG job

Volcano Watch — Volcano watching at Mauna Loa is a BIG job

Since Mauna Loa began showing signs of renewed restlessness in mid-2002, we have put a lot of effort into improving our capability for detecting the...

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