Is there anything more spectacular than a towering lava fountain? Think about what it is: glowing red molten rock being shot into the sky, potentially hundreds or thousands of feet. As ubiquitous and ...

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 ...

A new type of volcano has been discovered in the western Pacific Ocean. The findings may reduce the strength of a popular theory of “hotspot” volcanism, researchers say. Naoto Hirano at the Tokyo ...

This photo provided by the U.S. Geological Survey shows the summit lava lake of Hawaii's Kilauea volcano on May 6, 2018. By analyzing the dynamics of a string of explosions that happened during the ...

Mount Etna is like no other volcano on Earth, new research finds. In fact, the volcano may have formed in a bizarre way, reminiscent of how some seamounts, called petit-spot volcanoes, grow on the ...

California has seven active volcanoes, each with a unique eruption history, categorized by type and threat level. The USGS monitors these volcanoes, providing information to authorities and the public ...

Over millions of years, the Earth’s upper layers have performed a dance that has created mountains, volcanoes, continents, ridges and ocean trenches. Tectonic plates play a key role in this process.