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Monument Geyser Basin: a unique vapor-dominated thermal area in Yellowstone National Park

Monument Geyser Basin: a unique vapor-dominated thermal area in Yellowstone National Park

Just south of Norris Geyser Basin is a little-visited thermal area called Monument Geyser Basin. The “monuments” there are unique in Yellowstone’s...

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A beginner's guide to dating (rocks)

A beginner's guide to dating (rocks)

Geologists study the rock record to understand how our world came to be and to try to determine what geologic events might occur in the future. The...

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Volcano Watch — STEM and suction solutions at HVO

Volcano Watch — STEM and suction solutions at HVO

STEM is an acronym that stands for Science, Technology, Engineering and Mathematics. In the educational system, encouraging STEM curriculum prepares...

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The 1959 Madison Slide, Part 2: Recovery and remediation

The 1959 Madison Slide, Part 2: Recovery and remediation

Mitigating the effects of the 1959 Madison Slide required a complex response of federal, local, and private organizations. The joint efforts...

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Volcano Watch — Using acoustic signals to identify the start of 2022 Mauna Loa eruption

Volcano Watch — Using acoustic signals to identify the start of 2022 Mauna Loa eruption

The 2022 eruption of Mauna Loa occurred late in the evening of November 27th. The eruption was preceded by intense earthquake activity about half an...

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Photo and Video Chronology — Quiet at Kīlauea summit on March 21, 2024

Photo and Video Chronology — Quiet at Kīlauea summit on March 21, 2024

On March 21, 2024, HVO geologists made a routine visit to check on equipment at the summit of Kīlauea.

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The 1959 Madison Slide, Part 1: A deadly consequence of the Hebgen Lake Earthquake

The 1959 Madison Slide, Part 1: A deadly consequence of the Hebgen Lake Earthquake

As the ground started shaking due to the 1959 Hebgen Lake earthquake, a mountain in Madison Canyon collapsed, devastating the area and causing...

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Volcano Watch — Establishing a Nascent Monitoring Program on Pico Basile Volcano, Equatorial Guinea

Volcano Watch — Establishing a Nascent Monitoring Program on Pico Basile Volcano, Equatorial Guinea

In 2012, steam began to rise from beneath the cracked concrete of a telecommunication station at the summit of Pico Basile volcano on Bioko Island...

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Exploring 140 years of water chemistry research in Yellowstone National Park

Exploring 140 years of water chemistry research in Yellowstone National Park

Yellowstone’s waters have been a subject of intense study for well over a century. A new database is now available summarizing water chemistry results...

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Volcano Watch — What was an emergency manager doing at a scientific conference?

Volcano Watch — What was an emergency manager doing at a scientific conference?

On the Island of Hawaiʻi, frequent eruptions foster a close relationship between the USGS Hawaiian Volcano Observatory (HVO) and the Hawaiʻi County...

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Small talk: Using tiny pockets of melt in crystals to understand magmatic processes in Yellowstone

Small talk: Using tiny pockets of melt in crystals to understand magmatic processes in Yellowstone

Scientists often strive for a big-picture approach to understanding a given problem. Sometimes, this big-picture thinking requires first zooming into...

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Volcano Watch — Hawaii represented at the Cities on Volcanoes conference in Antigua, Guatemala

Volcano Watch — Hawaii represented at the Cities on Volcanoes conference in Antigua, Guatemala

In February, the volcanological community gathered for the 12th edition of Cities on Volcanoes (COV12), a conference of the International Association...

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