News

Toting their surveying instruments to the tops of mountains or across continents, ancient (20th century) geodesists might have dreamed of an easier...

With the one-year anniversary of the onset of Kīlauea Volcano's 2018 lower East Rift Zone eruption upon us, USGS Hawaiian Volcano Observatory (HVO)...

The last 'hurrah' for a GPS instrument on the Pu‘u ‘Ō‘ō crater edge

Motion of a volcano resulting from pressure changes within its plumbing system is called deformation, and we can measure it with high-precision...

This timelapse sequence of webcam images over a 24-hour period shows a typical day at the summit of Mauna Loa. 

The U.S. Geological Survey's Hawaiian Volcano Observatory (HVO) recorded a magnitude-4.2 earthquake on Saturday, April 27, 2019, at 5:26 p.m. HST.

Webcam check at Halema‘uma‘u

May 3, 2019, marks the one-year anniversary of the start of Kīlauea Volcano's 2018 lower East Rift Zone eruption. Over the past year, USGS Hawaiian...

Routine visit to Mauna Loa summit.

Yellowstone Volcano Observatory staff gathered in Bozeman, Montana to discuss how to better monitor changes in the thermal areas of Yellowstone...