News

During Kīlauea Volcano's recent lower East Rift Zone (LERZ) eruption, lava-flow maps were a staple of the public outreach effort by the USGS Hawaiian...

Kīlauea Volcano's summit

Last week, the USGS released an updated threat assessment for US volcanoes. The first assessment was published in 2005. The 2018 update refined the...

The 2018 summit collapse and lower East Rift Zone eruption at Kīlauea Volcano were dramatic and, for many Island of Hawai‘i residents, tragic events...

The U.S. Geological Survey assesses active and potentially active volcanoes in the U.S., focusing on history, hazards and the exposure of people...

Since 1980, there have been 120 eruptions and 52 episodes of notable volcanic unrest at 44 U.S. volcanoes.

Have you ever played a game of telephone? Where one person says something to their neighbor, and the message is passed from person to person? The...

Great Hawaii ShakeOut

Sulfur dioxide (SO2)-rich emissions have long been a feature of Kīlauea Volcano's summit activity. However, vigorous volcanic ash production during...

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