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Volcano Watch — Another intrusion southwest of Kīlauea’s summit

Volcano Watch — Another intrusion southwest of Kīlauea’s summit

Last week, USGS Hawaiian Volcano Observatory (HVO) scientists were closely monitoring earthquakes and ground deformation in the region southwest of...

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Photo and Video Chronology – Aerial and ground surveys of Kīlauea, response instrumentation

Photo and Video Chronology – Aerial and ground surveys of Kīlauea, response instrumentation

Hawaiian Volcano Observatory staff and collaborators conducted aerial and ground surveys of Kīlauea Koa‘e fault system and Southwest Rift Zone to...

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How much CO2 does Yellowstone emit?

How much CO2 does Yellowstone emit?

Assessing carbon dioxide (CO2) emissions at Yellowstone is a challenging task, but careful measurements reveal that the region collectively emits as...

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Volcano Watch — Mauna Loa 2022: a retrospective on the early hours of the eruption

Volcano Watch — Mauna Loa 2022: a retrospective on the early hours of the eruption

In the late hours of November 27, 2022, Mauna Loa began erupting. Lava was visible on the west side of the Island of Hawaiʻi, from Kailua-Kona to...

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Seasonal ground motion in Yellowstone

Seasonal ground motion in Yellowstone

Ground deformation measurements are an important volcano and earthquake monitoring tool in Yellowstone. But they also detect changes unrelated to...

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Volcano Watch — Iceland’s recent eruption a reminder of lava flow hazards

Volcano Watch — Iceland’s recent eruption a reminder of lava flow hazards

Lava flows slowly approaching houses. Authorities evacuating neighborhoods. The tension of residents not knowing when, or if, they can return to their...

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A new monitoring site to track hydrothermal activity in Norris Geyser Basin

A new monitoring site to track hydrothermal activity in Norris Geyser Basin

In summer 2023, YVO scientists established a new monitoring station in Norris Geyser Basin.  The site is the first of its kind in Yellowstone and will...

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New USGS Data Releases Available

New USGS Data Releases Available

Several newly published USGS data releases provide data on Kīlauea thermal maps during the 2018 lower East Rift Zone eruption, tiltmeter data from...

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Volcano Watch — Upgrades below the surface

Volcano Watch — Upgrades below the surface

Technicians at the USGS Hawaiian Volcano Observatory (HVO) are constantly engineering, building, deploying, maintaining, troubleshooting, or upgrading...

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Erupting Bore Holes! The Thrills and Chills of 1967–1968 Yellowstone Research Drilling

Erupting Bore Holes! The Thrills and Chills of 1967–1968 Yellowstone Research Drilling

You can learn a lot about the geological conditions of a region through scientific drilling. And that’s exactly what happened at Yellowstone in the...

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Volcano Watch — Where is magma stored in Kīlauea?

Volcano Watch — Where is magma stored in Kīlauea?

Over the past several months, periods of increased earthquake activity and ground deformation in the summit region of Kīlauea volcano indicate that...

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Caldera or crater…what’s the difference?

Caldera or crater…what’s the difference?

Is a caldera a landform or a type of volcano?  Turns out, it’s both.  Which can be a little confusing.

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