News

Kīlauea volcano is not erupting. Increased earthquake activity and changes in the patterns of ground deformation at Kīlauea’s summit began occurring...

HVO field crews—equipped with specialized safety gear—conduct station maintenance, collect water samples, and monitor for new changes from within the...

The Pacific is home to dozens of active volcanic systems including the massive Hawaiian shield volcanoes Kīlauea and Mauna Loa. Most basaltic shield...

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

HVO field crews—equipped with specialized safety gear—conduct station maintenance, collect water samples, and monitor for new changes from within the...

A new USGS Hawaiian Volcano Observatory webcam provides views to the south of Kīlauea caldera in the area of the August 2021 intrusion. Near-live...

We know that when a volcano erupts, molten red rock makes it to the surface, while during an intrusion it doesn’t. The difference between the two...

Kīlauea summit interferogram

HVO scientists deploy temporary Global Positioning System (GPS) sites to collect data from the intrusion southwest of Kīlauea caldera.

Ground deformation in Kīlauea’s south summit region continues, though at a lower rate than what has been seen in earlier intrusive pulses over the...