News

Want to know the number and pattern of earthquakes that occurred in the Yellowstone region in 2023?  Or what interesting new geyser activity took...

Over the past few years, eruptions of Kīlauea volcano on the Island of Hawai‘i have happened in remote regions and lava flows have not directly...

Argon dating is a powerful tool for determining when volcanoes erupted in the past. This technique works on a multitude of volcanic materials—from...

Kīlauea began erupting from fissures southwest of Kaluapele (the summit caldera) just after midnight on June 3; the eruption ceased just nine hours...

Yellowstone caldera is the most recent in a series of volcanic structures that stretches across the Snake River Plain of Idaho and into northern...

Mauna Loa volcano stands as the largest and most active volcano on Earth. With a rich history of eruptions that have shaped the Island of Hawaʻi's...

You may have heard of radium in connection to French scientists Marie and Pierre Curie, or because it is in an environmental hazard. But what is it...

The USGS Hawaiian Volcano Observatory (HVO) is responsible for monitoring and studying one of the most active volcanic regions in the world. The...

Many people regard Yellowstone as an exceptional place that merits only positive superlatives. But in much of the broadcast, streaming, and popular...

HVO staff are conducting the annual Mauna Loa GPS campaign. During the survey, GPS instruments are deployed at established benchmarks so that their...