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What's Going on Under Norris Geyser Basin?

What's Going on Under Norris Geyser Basin?

If there were an Olympic medal for hydrothermal systems, Norris Geyser Basin would bring home the gold.

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Volcano Watch — Old bombs found on Mauna Loa: The rest of the story (Part 1)

Volcano Watch — Old bombs found on Mauna Loa: The rest of the story (Part 1)

In late February 2020, Hawaii media reported on the recent discovery of two bombs on the north flank of Mauna Loa, but details were lacking. Today, we...

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The roads less traveled in the Greater Yellowstone Ecosystem

The roads less traveled in the Greater Yellowstone Ecosystem

What values do these road-less areas offer for science, for recreation, for wildlife? As public land owners, we all shape the future of the  Greater...

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Photo and Video Chronology - Kīlauea - March 2, 2020

Photo and Video Chronology - Kīlauea - March 2, 2020

Water pond in Halema‘uma‘u continues to grow

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Volcano Watch — This week marks 65 years since Kīlauea Volcano's 1955 eruption

Volcano Watch — This week marks 65 years since Kīlauea Volcano's 1955 eruption

February 28, 2020, marks the 65th anniversary of Kīlauea Volcano's 1955 lower East Rift Zone (LERZ) eruption. In recognition of this historic event...

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Caldera systems—a worldwide family that is more than just Yellowstone!

Caldera systems—a worldwide family that is more than just Yellowstone!

Did you know that there are similar caldera systems spread across the globe? And many of these are far more volcanically active than Yellowstone!

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Volcano Watch — Chemical analyses shed light on possible origins of island ash deposits

Volcano Watch — Chemical analyses shed light on possible origins of island ash deposits

The origin(s) of volcanic ash deposits on the Island of Hawai‘i have been an enigma, especially those found on and between Kīlauea and Mauna Loa. We...

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Photo and Video Chronology - Mauna Loa - February 18, 2020

Photo and Video Chronology - Mauna Loa - February 18, 2020

Interferogram shows range change at Mauna Loa and Kīlauea
 

Interferogram shows range change at Mauna Loa and Kīlauea

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Yellowstone's shadow

Yellowstone's shadow

The lack of any basalt in Yellowstone caldera—the existence of a magmatic "shadow"—is good evidence that the rhyolite magma chamber is still at least...

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Volcano Watch — Endangered plant survives volcanic hotspot, but is challenged by invasive species

Volcano Watch — Endangered plant survives volcanic hotspot, but is challenged by invasive species

Portulaca sclerocarpa (also known as ‘Ihi mākole) is a critically endangered small succulent plant in the purslane family (Portulacaceae). It only...

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Seeing Yellowstone in stereo: The importance of monitoring Yellowstone's thermal areas from aircraft photos

Seeing Yellowstone in stereo: The importance of monitoring Yellowstone's thermal areas from aircraft photos

Images acquired using inexpensive cameras from airborne platforms can be used to monitor surface changes in thermal areas over a variety of spatial...

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Volcano Watch — People and jobs at HVO, Part 5: Geologists rock!

Volcano Watch — People and jobs at HVO, Part 5: Geologists rock!

Continuing with the Volcano Awareness Month theme of people and their work at the USGS Hawaiian Volcano Observatory, we move on to another role at HVO...

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