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...

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
 

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

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...