News

 Learn About USGS Hazards Science and More About National Preparedness Month:  The very nature of natural hazards means that they have the potential...

Stable temperatures at Halema‘uma‘u water pond

"No food, no fire; no means to procure either; alone in an unexplored wilderness, one hundred and fifty miles from the nearest human abode, surrounded...

Halema‘uma‘u water pond on September 14

This week, a group of volcanic gas scientists from across the United States, including staff from the USGS Hawaiian Volcano Observatory (HVO), will...

Twenty-five middle school-age GeoGirls spent five days conducting hands-on research and interacting with female scientists, educators and older...

Halema‘uma‘u water pond on September 10

Animated, comparison, and video imagery of the Halema‘uma‘u water pond.

Geoscientists have never observed an active magma reservoir firsthand because magmas are stored inaccessibly deep underground. However, crystals are...

An early morning view looking north across Moku‘āweoweo, Mauna Loa's summit caldera, from a spot near the summit cabin on the volcano's south caldera...