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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. 

Filter Total Items: 1680
Volcano Watch — Global reach of volcanic gases

Volcano Watch — Global reach of volcanic gases

When we think of the negative impact that volcanoes have on people, the local geographic area of the eruption generally comes to mind. Ash, lava, and...

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Volcano Watch — Chronology of a volcanic disaster

Volcano Watch — Chronology of a volcanic disaster

The worst volcanic disaster of the 20th century occurred in 1902 on Martinique, an island in the French West Indies.

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Volcano Watch — Two tiny kipuka tell secrets about Kīlauea's past

Volcano Watch — Two tiny kipuka tell secrets about Kīlauea's past

About 2.5 km (1.5 miles) down the Hilina Pali Road in Hawai`i Volcanoes National Park are two tiny kipuka that help geologists decipher obscure parts...

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Volcano Watch — Eruptions help cool interior of Earth—but there's a long way to go

Volcano Watch — Eruptions help cool interior of Earth—but there's a long way to go

People frequently ask, "What's with all these eruptions I hear about? Is volcanic activity increasing?" Indeed, a plot of reported eruptions over the...

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Volcano Watch — Hawai'i Earthquake Machine Rumbles On

Volcano Watch — Hawai'i Earthquake Machine Rumbles On

In 2003, the seismic data analysts at the U.S. Geological Survey's Hawaiian Volcano Observatory (HVO) examined and archived 10,591 earthquakes on the...

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Volcano Watch — HVO Science Fair Award winners shine

Volcano Watch — HVO Science Fair Award winners shine

Last week, the judging phase of the Hawai`i District Science Fair was completed and the awards given to deserving young scientists. The staff at the...

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Volcano Watch — New staff member at HVO

Volcano Watch — New staff member at HVO

Any institution, whether commercial, academic, or governmental, requires novel ideas to thrive. Fresh ideas come from training, sudden insights (the...

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Volcano Watch — Pu`u `O`o throws yet another curve ball

Volcano Watch — Pu`u `O`o throws yet another curve ball

As reported in the previous Volcano Watch, a new vent opened on the south flank of Pu`u `O`o two weeks ago, on Sunday, January 18. The behavior of the...

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Volcano Watch — Mother's Day came early this year—January 18, to be exact

Volcano Watch — Mother's Day came early this year—January 18, to be exact

If Pu`u `O`o were human, it would make a great baseball pitcher. It throws blazing fastballs, slow change-ups, and sharp curveballs that leave the...

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Volcano Watch — Volcanism on other planets

Volcano Watch — Volcanism on other planets

Since the beginning of the New Year, much attention has been focused on Earth's celestial neighbor, the planet Mars. Though the main goal of the...

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Volcano Watch — Lava slowly fills Pu`u `O`o and builds broad ridge

Volcano Watch — Lava slowly fills Pu`u `O`o and builds broad ridge

Lava flows stopped pouring into the sea on the south shoreline of Kīlauea 6 months ago. Few imagined that it would mark the beginning of a progressive...

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Volcano Watch — Arnold Okamura retires as longest-serving HVO staff member

Volcano Watch — Arnold Okamura retires as longest-serving HVO staff member

Arnold Okamura retired on January 3 after more than 42 years with the U.S. Geological Survey, 39 at the Hawaiian Volcano Observatory. His tenure at...

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