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Burst-like swarms commonly interpreted to be caused by movement of hydrothermal fluids (water).

Kīlauea's summit eruption continues on the Island of Hawai‘i; the west vent in Halema‘uma‘u erupts lava into the lava lake. Gas emissions and seismic...

Geologists look for big things in small packages.  In Yellowstone, information about some of the biggest volcanic eruptions are hidden in the smallest...

“When will Mauna Loa erupt next?” This was the title of a Volcano Awareness Month video presentation released by the USGS Hawaiian Volcano Observatory...

Kīlauea's summit eruption continues on the Island of Hawai‘i; the west vent in Halema‘uma‘u erupts lava into the lava lake. Gas emissions and seismic...

Kīlauea's summit eruption continues on the Island of Hawai‘i; the west vent in Halema‘uma‘u erupts lava into the lava lake. Gas emissions and seismic...

Kīlauea's summit eruption continues on the Island of Hawai‘i; the west vent in Halema‘uma‘u erupts lava into the lava lake. Gas emissions and seismic...

Kīlauea's summit eruption continues on the Island of Hawai‘i; the west vent in Halema‘uma‘u erupts lava into the lava lake. Gas emissions and seismic...

February 26th, 2021 at 11 AM - 1 PM PST

Zoom Webinar

We know Yellowstone today as the site of a huge caldera that erupted 631,000 years ago and covered the region in a thick layer of ash. But what was...