News

Mount St. Helens volcano loomed in the distance as 25 middle-school “GeoGirls” signed in, received a name tag, dropped their overnight gear and...

About 30 kilometers west of the Yellowstone National Park boundary, in Idaho, UNAVCO* field engineer Tom Lyman surveys the damage at GPS station P361...

Mauna Loa and Mauna Kea as seen from Kīlauea's lower East Rift Zone

On May 4, 2018, a powerful magnitude-6.9 earthquake on the south flank of Kīlauea Volcano shook the Island of Hawai‘i. It was the largest quake in...

Data Release: Volcanic ash leachate and rainwater chemistry from increased 2018 activity of Kīlauea Volcano, Hawaiʻi

We often talk about monitoring Yellowstone. To most people, this implies tracking earthquake activity over time, or how the ground moves up and down...

My 37-year stint with the U.S. Geological Survey—16 years at the Cascades Volcano Observatory (CVO) and 21 at the Hawaiian Volcano Observatory (HVO)...

No significant changes at Fissure 8 or Pu‘u ‘Ō‘ō

One of the most common questions asked of YVO is "when is the next big one?" This is an interesting question, given the multiple potential natural...

Before and after satellite images of Leilani Estates subdivision