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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 — When is Kīlauea erupting?

Volcano Watch — When is Kīlauea erupting?

I answered the phone last week to a perplexed voice asking, "The paper says Pu`u `O`o is erupting but there aren't any lava flows. How can it be...

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Volcano Watch — The next Hualālai eruption

Volcano Watch — The next Hualālai eruption

What will the next eruption of Hualālai be like? The first step in answering that question is to find out what the last several eruptions were like...

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Volcano Watch — Thomas Jaggar, HVO

Volcano Watch — Thomas Jaggar, HVO

Dr. Thomas L . Wright, HVO's Scientist-in-Charge from 1984 to 1991, returned to the Big Island for a short visit last week to conduct studies of the...

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Volcano Watch — Why sample the lava?

Volcano Watch — Why sample the lava?

If you've ever watched videos of the current eruption, you've seen geologists throwing hammer-headed cables into the lava tube to snag a glob of lava...

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Volcano Watch — Kīlauea sulfur dioxide emissions down by 90%

Volcano Watch — Kīlauea sulfur dioxide emissions down by 90%

Sinners or not, many of us living on the island of Hawai`i over the past decade feel that, although we cherish the volcanoes, the smell of sulfur gas...

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Volcano Watch — Hazards of Mauna Loa

Volcano Watch — Hazards of Mauna Loa

The Island of Hawai`i is the fastest-growing region in the State of Hawai`i, with over 100,000 residents and a population that continues to grow at a...

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Volcano Watch — Kīlauea Update

Volcano Watch — Kīlauea Update

Kīlauea Volcano continues to be in a state of repose with no eruptive activity since January 31. Although no molten rock can be seen on the surface of...

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Volcano Watch — Pu‘u ‘Ō‘ō: extinct or waiting?

Volcano Watch — Pu‘u ‘Ō‘ō: extinct or waiting?

Pu`u `O`o was alive and well on Wednesday, January 29, with acrid fumes drifting across the landscape and an active pond glowing red at night. The...

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Volcano Watch — Forgotten faults

Volcano Watch — Forgotten faults

Most visitors to Hawai`i Volcanoes National Park have driven down the Chain of Craters Road to the coast and observed the high south-facing pali that...

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Volcano Watch — Magma returns to an old haunt (or, where did all the magma go?)

Volcano Watch — Magma returns to an old haunt (or, where did all the magma go?)

Episode 54 of the Pu'u 'O'o-Kupaianaha eruption began early in the morning of Thursday, January 30, and manifested itself in a number of different way...

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Volcano Watch — HVO is 85

Volcano Watch — HVO is 85

Ne plus haustae aut obrutae urbes (No more shall the cities be destroyed). January, 1997, marks the 85th anniversary of the dedication of the Hawaiian...

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Volcano Watch — New seismology projects for 1997

Volcano Watch — New seismology projects for 1997

1997 is off to a promising start at the Hawaiian Volcano Observatory (HVO). Already in the works for the New Year are two projects aimed at improving...

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