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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...

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...

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

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

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...

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...

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...

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

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...