News

If you've been following the latest geological news, you'll have noticed the brand new eruption on Iceland's Reykjanes Peninsula. It's a classic...

New satellite communication technology is being tested at Yellowstone monitoring stations and could have a big impact on how real-time data are...

The Center for the Study of Active Volcanoes (CSAV) is holding its annual summer International Training Course in Volcano Hazards Monitoring. This...

In last week's post (https://www.usgs.gov/observatories/calvo/news/mystery-noon-booms-part-1), we challenged you to give us your best hypotheses as to...

When lava poured out over the floor of Moku‘āweoweo, Mauna Loa’s summit caldera, late on the night of November 27, 2022, it was still many hours away...

Just in time for the Fourth of July, CalVO scientists have been seeing some interesting - but unusual - acoustic signals on our seismometers. 

The 2018 collapse of southern Kaluapele (Kīlauea caldera) left a pit whose lowest point was about 500 m (1640 ft) above sea level (asl). Since 2020...

If you spend time in Long Valley, you may have noticed some changes in the Hot Creek springs and pools following this winter's dramatic snows...

When we think about the Earth's magnetic field, we often associate it with compasses and navigation. However, did you know that our planet's magnetic...

California Volcano Monitor: This past week, you might have seen a truck full of geologists toting video equipment around the Clear Lake Volcanic Field...