News

Small rockfall and explosion at Kīlauea Volcano's summit lava lake
 

A little more than ten years ago, conditions around Kīlauea Volcano's summit were much different than today. The caldera floor was open to the public...

This study implements the first continuous, real-time operational routine for tracking lava lake surface motion, applying the technique to the...

In the early nineteenth century, European settlers began exploring the lands of northwestern Wyoming—lands that had been known to Native Americans for...

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...