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News about Mauna Loa.

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Volcano Watch — The rise and fall of Kīlauea's summit lava lake: what's happening and what does it mean?

Volcano Watch — The rise and fall of Kīlauea's summit lava lake: what's happening and what does it mean?

In early September 2016, USGS Hawaiian Volcano Observatory (HVO) monitoring instruments on Kīlauea began recording increased rates of inflation and...

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Volcano Watch — Kīlauea ocean entry hazards: The plume is not your friend

Volcano Watch — Kīlauea ocean entry hazards: The plume is not your friend

People who venture too close to the perilous beauty of an ocean entry face real and present dangers.

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Volcano Watch — Jaggar's prediction comes true—the 1935 eruption of Mauna Loa

Volcano Watch — Jaggar's prediction comes true—the 1935 eruption of Mauna Loa

Despite severely reduced funding and staffing, Jaggar made an important and successful prediction based on Mauna Loa's past pattern of eruptions. 

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USGS HVO Press Release — Magnitude-4.0 earthquake at summit of Mauna Loa

USGS HVO Press Release — Magnitude-4.0 earthquake at summit of Mauna Loa

The U.S. Geological Survey's Hawaiian Volcano Observatory (HVO) recorded a magnitude-4.0 earthquakebeneath the Island of Hawai‘i on Tuesday, September...

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Volcano Watch — Charcoal is good for more than the barbeque

Volcano Watch — Charcoal is good for more than the barbeque

To help determine the timing of eruptive activity, geologists use a radiocarbon age-dating technique. Collecting charcoal is the most common method...

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Volcano Watch — Kīlauea Volcano's "Old Faithful"—a thing of the past

Volcano Watch — Kīlauea Volcano's "Old Faithful"—a thing of the past

While scattered references to "Old Faithful" can be found after 1916, the persistent lava fountain, which played at Kīlauea Volcano for a quarter of a...

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Volcano Watch — August 6 explosive event at Kīlauea Volcano's summit just one among many

Volcano Watch — August 6 explosive event at Kīlauea Volcano's summit just one among many

The explosive event at Halema‘uma‘u Crater's lava lake on August 6, 2016, was the latest in a series that began in 2008. It is useful to view the...

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Volcano Watch — Kīlauea summit lava lake explosion reminds us of significant, ongoing hazards around Halema‘uma‘u Crater

Volcano Watch — Kīlauea summit lava lake explosion reminds us of significant, ongoing hazards around Halema‘uma‘u Crater

At 10:02 p.m., HST, on Saturday, August 6, a section of altered, thermally-stressed rock enclosing the Halema‘uma‘u Crater lava lake detached from the...

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Volcano Watch — Hawai‘i's role in reducing volcanic risk around the world

Volcano Watch — Hawai‘i's role in reducing volcanic risk around the world

2016 International Training Program course brings together scientists and technicians from around the globe to learn about and practice volcano...

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Volcano Watch — Beware the perilous beauty of lava entering the ocean

Volcano Watch — Beware the perilous beauty of lava entering the ocean

Lava erupting from the Pu‘u ‘Ō‘ō vent entered the ocean along Kīlauea Volcano's south coast this past week for the first time since 2013—perhaps the...

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Volcano Watch — Kīlauea Volcano's eruptions offer picturesque viewing opportunities

Volcano Watch — Kīlauea Volcano's eruptions offer picturesque viewing opportunities

What an exciting time for Kīlauea volcano-watchers! 

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Volcano Watch — Freddy fungus and Annie alga versus the volcano

Volcano Watch — Freddy fungus and Annie alga versus the volcano

On the Island of Hawai‘i, lichens are important colonists of young lava flows, particularly ‘a‘ā lava.

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