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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.

Filter Total Items: 1785
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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Volcano Watch — Here's the dirty truth about mud volcanoes

Volcano Watch — Here's the dirty truth about mud volcanoes

As residents of Hawai`i, we are, for the most part, acutely aware of volcanic processes and products. This is especially true for those of us living...

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Volcano Watch — What can Gulf Coast hurricanes teach us about volcanoes?

Volcano Watch — What can Gulf Coast hurricanes teach us about volcanoes?

Like much of the world, HVOers have been following the events surrounding hurricanes Katrina and Rita in the past months. Extreme phenomena like...

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Volcano Watch — Pu`u `O`o crater quietly fumes--for now

Volcano Watch — Pu`u `O`o crater quietly fumes--for now

By day, the six vents arrayed across the crater floor of Pu`u `O`o emit copious clouds of steam and magmatic gas. Darkness reveals that many of them...

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Volcano Watch — Mount St. Helens: One year and counting

Volcano Watch — Mount St. Helens: One year and counting

Almost exactly one year ago today, the first signs of reawakening were detected at Mount St. Helens in Washington. On September 23, 2004, a small...

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Volcano Watch — Dallas Peck: former HVO geologist and master gardener

Volcano Watch — Dallas Peck: former HVO geologist and master gardener

Dallas Peck, one of the finest geologists to have matriculated at the Hawaiʻian Volcano Observatory, died August 21 in Fairfax, Virginia, at the age...

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Volcano Watch — HVO and NOAA are Pacific Tsunami Monitoring Partner

Volcano Watch — HVO and NOAA are Pacific Tsunami Monitoring Partner

Recent reports in the local news media mention significant supplemental funding for the National Oceanic and Atmospheric Administration (NOAA) to...

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Volcano Watch — Mount St. Helens still erupting as anniversary approaches

Volcano Watch — Mount St. Helens still erupting as anniversary approaches

After 18 years of relative quiet between 1987 and 2004, Mount St. Helens volcano began erupting again nearly one year ago with a small but spectacular...

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Volcano Watch — A pioneering volcanologist narrowly beats the Reaper

Volcano Watch — A pioneering volcanologist narrowly beats the Reaper

Two pioneering volcanologists-Thomas Jaggar and Frank Perret-set up the first systematic monitoring station in Hawai`i's Kīlauea caldera in 1911. The...

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Volcano Watch — Kalapana gets sandy volcanic ash from Kīlauea's summit

Volcano Watch — Kalapana gets sandy volcanic ash from Kīlauea's summit

"Curiouser and curiouser," said Alice after falling down the rabbit hole into Wonderland, and that's what some HVO researchers are saying about a late...

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Volcano Watch — The CSAV Program - training for future volcano scientists

Volcano Watch — The CSAV Program - training for future volcano scientists

Each year the University of Hawai`i at Hilo and the Hawaiʻian Volcano Observatory run two training courses at the Centre for the Study of Active...

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