For decades, volcanologists believed that the primary trigger for explosive eruptions was a drop in pressure as magma rises ...

Some scientists think we can better understand volcanoes by learning how the gaseous vortexes emerge. By Carolyn Wilke Some volcanoes perform a rather subtle trick: blowing rings of vapor that waft ...

Underwater volcanoes are powerful geological forces shaping our planet and oceans. These hidden giants form through tectonic activity and magma rising from Earth's depths. While most eruptions are ...

Learn about how volcanoes are formed and the ways they erupt Chiara Maria Petrone, Roberto Scandone, and Alex Whittaker On February 20, 1943, Dionisio Pulido and his family were working in their ...

Some volcanoes, such as the Cascade volcanoes up in Washington and Oregon, are of the type called a stratovolcano. These steep volcanoes sometimes erupt explosively and other times have calmer lava ...

Learn which countries have the most volcanoes, how volcanoes are formed, why these regions are highly active, and key ...

Ethiopia's Hayli Gubbi volcano has erupted after 12,000 years of silence. The powerful explosion sent ash plumes soaring ...

The Hayli Gubbi volcano, long thought to be dormant, sent ash nine miles into the sky in an eruption on Sunday ...

An undersea volcano erupted off Japan three weeks ago, providing a rare view of the birth of a tiny new island, but experts say it may not last very long. The unnamed undersea volcano, located about ...