News

Large quantities of volcanic gases, such as carbon dioxide (CO2), sulfur dioxide (SO2), and hydrogen sulfide (H2S), are released into the atmosphere...

Late Monday afternoon, earthquake activity picked up at Kīlauea’s summit.  At about 1:30 a.m. HST on Tuesday, that activity intensified, and it became...

This week marks the second anniversary of the appearance of water in Kīlauea’s Halema‘uma‘u crater, so it seems timely to discuss the water lake’s...

Completed 2018 and 2019 Supplemental Appropriations activities are being used to prepare for the 2021 Hurricane season in Puerto Rico and the...

May 3rd marks three years since the start of the devastating lower East Rift Zone eruption of Kīlauea. In 2018, rising summit lava lake levels, caused...

‘Twas the Sunday before Christmas, the eve of the winter solstice, and festive holiday lights blinked of bright red and green. And then, shortly after...

The 2018 lower East Rift Zone eruption and summit caldera collapse marked the end of the 35-year-long Puʻu ʻŌʻō and 10-year-long summit lava lake...

Quantifying coastal change caused by hurricanes is essential in helping communities better plan for such coastal hazards.

Over the past two decades, the USGS Hawaiian Volcano Observatory (HVO) has set up a camera network system to monitor visual changes at Kīlauea and...

Geodesy is the science of accurately measuring and understanding the Earth's geometric shape, gravity field, and orientation in space—and how these...