News

To set the stage for next week's Volcano Watch about the upcoming anniversary of Kīlauea Volcano's current summit eruption, this week we revisit the...

Delta Erosion

Clear views of Halema‘uma‘u lava lake and spattering
 

Time-lapse image sequence of small collapse in Pu‘u ‘Ō‘ō in February
 

A lot of heat is released from Earth's surface at Yellowstone. The evidence of this heat flow includes thermal features like hot springs, geysers, mud...

Most people likely know that the USGS Hawaiian Volcano Observatory (HVO) uses seismometers and Global Positioning System (GPS) receivers for...

Ever wonder what makes the Norris Geyser Basin in Yellowstone National Park so special? It turns out that the basin not only boasts the hottest...

Poor views at Pu‘u ‘Ō‘ō

Today's Volcano Watch begins with a question: Can you guess when the next slow slip event will happen on Kīlauea Volcano's South Flank? As a hint, the...

‘A‘ā flows at the base of Pūlama pali