A group of international scientists gathered at the Cascades Volcano Observatory this week to learn about volcano hazard monitoring techniques they can bring back to their home countries. The Cascades ...

During volcanic crises, the USGS Hawaiian Volcano Observatory (HVO) plays a pivotal role, sharing information on activity and associated hazards with close partners on the Island of Hawaii, including ...

They're born. They live once, erupting for a period that might last for days, years or decades. Then, they go dark and die. This narrative describes the life of a monogenetic volcano, a type of ...

Most volcanoes form at the boundaries of Earth's tectonic plates, which are huge slabs of crust and upper mantle that fit together like puzzle pieces. Think of these plates as massive rafts floating ...

The Popocatépetl volcano, located southeast of Mexico City, stands as the second highest peak in Mexico and is considered to be one of the potentially most dangerous volcanoes in the world, given its ...

Editor’s note: The KOIN 6 Weather team is presenting weather and science lessons to help serve our teachers and students. Click here for more lessons. PORTLAND, Ore. (KOIN) – The mighty mountains of ...

The Hawaiian Volcano Observatory is "closely" monitoring the eruption, but says there's currently "no indication that populated areas are threatened" Hawaii’s Kilauea volcano is erupting for the ...

One of two main craters on Alaska’s Mount Spurr, shown in 1991. Earthquake activity suggests the volcano is close to erupting again in 2025. (Photo by R.G. McGimsey/Alaska Volcano Observatory/U.S.

The volcano has been periodically erupting over the past month. One of the world’s most active volcanoes, located in Kilauea, Hawaii, erupted for the seventh time since December, according to the U.S.