News

In the tradition of Hawaiian Volcano Observatory (HVO) founder Thomas Jaggar's innovative field methods, HVO recently used a cutting-edge technique to...

Yellowstone, like many regions with hydrothermal activity, often exhibits earthquake swarms. But how do we define an earthquake swarm and distinguish...

The U.S. Geological Survey's Hawaiian Volcano Observatory (HVO) recorded a magnitude-4.9 earthquake on Monday, November 11, just before 6:36 a.m. HST...

Information about air quality is important to Hawaii residents, particularly those living on the Island of Hawai‘i, where volcanic activity can lead...

More videos of the October 26 water sampling mission

Yellowstone is one of the best instrumented volcanoes in the world. There are several dozen GPS stations, seismometers, temperature sensors, river...

After 36 years with the USGS and 7 years as the Scientist-in-Charge of CalVO, Dr. Margaret (Maggie) Mangan will be stepping down from leading the...

As roads are recut into Kīlauea’s 2018 lava flow field, many have been surprised at how hot the lava remains under the surface, even though it is...

Video of the water sampling at Kīlauea summit with an unmanned aircraft system

Water sampling at Kīlauea summit with an unmanned aerial system