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Laboratory experiments help explain what happens when hot rocks, water and gas interact in Yellowstone’s hydrothermal system

Laboratory experiments help explain what happens when hot rocks, water and gas interact in Yellowstone’s hydrothermal system

Results from laboratory experiments have provided significant insights on many fundamental physical and chemical processes on Earth. They also add...

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Photo and Video Chronology – Kīlauea – January 22, 2021

Photo and Video Chronology – Kīlauea – January 22, 2021

Kīlauea's summit eruption continues on the Island of Hawai‘i; the west vent in Halema‘uma‘u erupts lava into the lava lake. Gas emissions and seismic...

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Volcano Watch — A closer look at Kīlauea’s newest lava

Volcano Watch — A closer look at Kīlauea’s newest lava

Every rock on Earth is made of up a unique combination of chemical elements, and lavas/tephra formed during Hawaiian eruptions are no exception. What...

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Photo and Video Chronology – Kīlauea – January 20, 2021

Photo and Video Chronology – Kīlauea – January 20, 2021

The eruption in Halema‘uma‘u at Kīlauea's summit on the Island of Hawai‘i continues, with the west vent erupting lava into the lava lake. Gas...

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Photo and Video Chronology – Kīlauea – January 19, 2021

Photo and Video Chronology – Kīlauea – January 19, 2021

On the Island of Hawai‘i, Kīlauea Volcano's summit eruption continues, with the west vent in Halema‘uma‘u erupting lava into the lava lake. Gas...

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Where do acid-sulfate hot springs come from and why are they important?

Where do acid-sulfate hot springs come from and why are they important?

Yellowstone hosts thousands of thermal features which have diverse chemistries and origins. The most iconic features, like Old Faithful, have neutral...

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January 17, 2021 Mount Hood Earthquake Swarm

January 17, 2021 Mount Hood Earthquake Swarm

An earthquake swarm at Mount Hood is ongoing. The earthquakes are associated with regional faulting and are not a sign of changes in volcanic activity...

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Photo and Video Chronology – Kīlauea – January 15, 2021

Photo and Video Chronology – Kīlauea – January 15, 2021

The eruption in Halema‘uma‘u at Kīlauea's summit on the Island of Hawai‘i continues, with the west vent erupting lava into the lava lake. Gas...

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USGS HVO Information Statement —Magnitude-4.0 earthquake northeast of Pāhala, Island of Hawai‘i

USGS HVO Information Statement —Magnitude-4.0 earthquake northeast of Pāhala, Island of Hawai‘i

The U.S. Geological Survey's Hawaiian Volcano Observatory (HVO) recorded a magnitude-4.0 earthquake located beneath the south part of the Island of...

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Photo and Video Chronology – Kīlauea – January 14, 2021

Photo and Video Chronology – Kīlauea – January 14, 2021

The eruption in Halema‘uma‘u at Kīlauea's summit on the Island of Hawai‘i continues, with the west vent erupting lava into the lava lake. Gas...

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New Scientist-in-Charge at USGS Cascades Volcano Observatory

New Scientist-in-Charge at USGS Cascades Volcano Observatory

The U.S. Geological Survey is pleased to announce the selection of Dr. Jon Major to serve as the new Scientist-in-Charge of the USGS Cascades Volcano...

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Volcano Watch — Gas math—how we know how much sulfur dioxide volcanoes emit

Volcano Watch — Gas math—how we know how much sulfur dioxide volcanoes emit

Volcanic gases are an important part of eruptions—they help magma to rise within the earth and erupt, they can tell us how much lava is being erupted...

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