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Yellowstone Volcano Observatory scientists investigate many aspects of the Yellowstone volcanic system, including the incredible geysers that are a...

Kīlauea's summit eruption continues on the Island of Hawai‘i; Halema‘uma‘u west vent erupts lava into the lava lake, which was 228 m (748 ft) deep...

Although Mauna Loa is Earth’s largest active volcano, it has lived in the shadow of Kīlauea since it last erupted in 1984.  The geologic record shows...

Kīlauea's summit eruption continues on the Island of Hawai‘i; Halema‘uma‘u west vent erupts lava into the lava lake, which was 228 m (748 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 227 m (744 ft) deep...

Interested in knowing more about Yellowstone geyser, seismic and deformation activity in 2020?  And the results of research conducted by the...

Kīlauea's summit eruption continues on the Island of Hawai‘i; Halema‘uma‘u west vent erupts lava into the lava lake, which was 227 m (744 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 227 m (744 ft) deep...

May 3rd marks three years since the start of the devastating lower East Rift Zone eruption of Kīlauea. In 2018, rising summit lava lake levels, caused...

Kīlauea's summit eruption continues on the Island of Hawai‘i; Halema‘uma‘u west vent erupts lava into the lava lake, which was 227 m (744 ft) deep...