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Yellowstone’s caldera, resurgent domes, and lava flows—volcanic giants hiding in plain sight

Yellowstone’s caldera, resurgent domes, and lava flows—volcanic giants hiding in plain sight

While geysers and hot springs are relatively easy to find in Yellowstone, what about the caldera, and the lava flows and the two massive resurgent...

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New USGS Data Release — Crater geometry data for Puʻuʻōʻō, on Kīlauea Volcano’s East Rift Zone, in May 2018

New USGS Data Release — Crater geometry data for Puʻuʻōʻō, on Kīlauea Volcano’s East Rift Zone, in May 2018

The USGS recently published a data release that includes a three-dimensional model of Puʻuʻōʻō, on Kīlauea's East Rift Zone, and the collapse crater...

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Photo and Video Chronology – Kīlauea – April 9, 2021

Photo and Video Chronology – Kīlauea – April 9, 2021

Kīlauea's summit eruption continues on the Island of Hawai‘i; Halema‘uma‘u west vent erupts lava into the lava lake, which was 225 m (738 ft) deep...

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Photo and Video Chronology – Mauna Loa – April 9, 2021

Photo and Video Chronology – Mauna Loa – April 9, 2021

Mauna Loa summit interferogram
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Photo and Video Chronology – Kīlauea – April 8, 2021

Photo and Video Chronology – Kīlauea – April 8, 2021

Kīlauea's summit eruption continues on the Island of Hawai‘i; Halema‘uma‘u west vent erupts lava into the lava lake, which was 225 m (738 ft) deep...

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Volcano Watch — What’s that (seismic) noise?

Volcano Watch — What’s that (seismic) noise?

The USGS Hawaiian Volcano Observatory (HVO) uses dozens of seismometers to locate individual earthquakes and identify signals that are related to...

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New electron microprobe installed at Menlo Park

New electron microprobe installed at Menlo Park

On March 25th, the USGS California Volcano Observatory celebrated the delivery of a new 'baby' - our brand new electron microprobe is finally up and...

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Photo and Video Chronology – Kīlauea – April 6, 2021

Photo and Video Chronology – Kīlauea – April 6, 2021

Kīlauea's summit eruption continues on the Island of Hawai‘i; Halema‘uma‘u west vent erupts lava into the lava lake, which was 225 m (738 ft) deep...

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Photo and Video Chronology – Kīlauea – April 5, 2021

Photo and Video Chronology – Kīlauea – April 5, 2021

Kīlauea's summit eruption continues on the Island of Hawai‘i; Halema‘uma‘u west vent erupts lava into the lava lake, which was 225 m (738 ft) deep...

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Yellowstone’s Cool Thermal Areas

Yellowstone’s Cool Thermal Areas

Yes, some of Yellowstone’s thermal areas are cool—as in, no longer hot.  Cooling is part of the “life cycle” of a thermal area.  And just as it’s...

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USGS HVO Information Statement — Magnitude-4.3 earthquake beneath Mauna Loa’s south flank

USGS HVO Information Statement — Magnitude-4.3 earthquake beneath Mauna Loa’s south flank

The U.S. Geological Survey's Hawaiian Volcano Observatory (HVO) recorded a magnitude-4.3 earthquake located beneath Mauna Loa's south flank on...

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Photo and Video Chronology – Kīlauea – April 2, 2021

Photo and Video Chronology – Kīlauea – April 2, 2021

Kīlauea's summit eruption continues on the Island of Hawai‘i; Halema‘uma‘u west vent erupts lava into the lava lake, which was 225 m (738 ft) deep...

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