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Photo & Video Chronology — Kīlauea summit monitoring overflight

Photo & Video Chronology — Kīlauea summit monitoring overflight

USGS Hawaiian Volcano Observatory staff conducted a monitoring overflight of the eruption site in Halemaʻumaʻu at the summit of Kīlauea during the...

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Volcano Watch — The ups and downs of episode forecasting using tilt data

Volcano Watch — The ups and downs of episode forecasting using tilt data

Beginning with episode 5 in January, 2025, the USGS Hawaiian Volcano Observatory has been issuing forecast windows for when the next lava fountain...

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Photo & Video Chronology — Halemaʻumaʻu overflight and maps of new activity, Kīlauea summit

Photo & Video Chronology — Halemaʻumaʻu overflight and maps of new activity, Kīlauea summit

Scientists conducted an overflight of the new fissures that opened up on and near the base of the northwest wall of Halemaʻumaʻu crater on September...

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Photo & Video Chronology — New fissures in Halemaʻumaʻu, Kīlauea summit

Photo & Video Chronology — New fissures in Halemaʻumaʻu, Kīlauea summit

Several new fissures opened up on and near the base of the northwest wall of Halemaʻumaʻu crater September 14-15, north of the established vent...

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Photo & Video Chronology — Fieldwork in American Samoa

Photo & Video Chronology — Fieldwork in American Samoa

From August 26–September 10, USGS–Hawaiian Volcano Observatory scientists were in American Samoa to conduct monitoring network maintenance and...

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Caps, trash, and other hydrothermal funky finds: 2026 edition

Caps, trash, and other hydrothermal funky finds: 2026 edition

Hold onto your hats and sunglasses—and your trash! Yellowstone National Park’s Geology team collects anything lost or left behind by visitors in the...

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Yellowstone Volcano Observatory…in Arizona?!

Yellowstone Volcano Observatory…in Arizona?!

The Yellowstone Volcano Observatory is not only responsible for monitoring and studying Yellowstone, but also volcanic systems throughout southwestern...

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Volcano Watch — September is National Preparedness Month

Volcano Watch — September is National Preparedness Month

Benjamin Franklin said, “If you fail to prepare, you are preparing to fail.”  As the past year in Hawaii has shown, hurricanes, eruptions, earthquakes...

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Yellowstone, Redstone, Greenstone, Blueschist—what makes rocks so colorful?

Yellowstone, Redstone, Greenstone, Blueschist—what makes rocks so colorful?

Rocks have a variety of colors that result from the minerals and chemical elements they contain and from their internal structure. Some names of rocks...

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Photo & Video Chronology — Kīlauea summit overflight and fieldwork

Photo & Video Chronology — Kīlauea summit overflight and fieldwork

On Thursday, August 27, 2026, USGS Hawaiian Volcano Observatory (HVO) staff spent much of the day digging volcanic gas monitoring sites out of the...

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Volcano Watch — The tephra time machine: exploring Kīlauea’s past

Volcano Watch — The tephra time machine: exploring Kīlauea’s past

In July, USGS Hawaiian Volcano Observatory (HVO) scientists visited an exposure of tephra and lava flows in the western wall of Kaluapele. The layers...

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Photo & Video Chronology — USGS HVO supports Hurricane Lala response

Photo & Video Chronology — USGS HVO supports Hurricane Lala response

The USGS Hawaiian Volcano Observatory supported the response to Hurricane Lala, which affected the Hawaiian Islands the weekend of August 15.  On...

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