This week has seen two major volcanic eruptions, so it's a great time to try to learn why these spectacular events occur. Dr Siobhán Power of Geological Survey Ireland answers some questions, but ...

Mount Etna has erupted on Monday, sending a kilometres-high plume of ash into the sky and sending tourists fleeing from the popular World Heritage area. Italy’s National Institute of Geophysics and ...

Scientists are predicting that a mile-deep volcano off the U.S. West Coast will erupt this year. The Axial Seamount, an underwater volcano located about 300 miles off the coast of Oregon, is ...

My family of five visited Stromboli, an island off the north coast of Sicily, in June. The sand around the island is black due to the island's active volcano. We took a boat out to see the volcano ...

The ice-covered Grímsvötn volcano on Iceland produced an unusually large and powerful eruption in 2011, sending ash 20km into the atmosphere, causing the cancellation of about 900 passenger flights.

Video footage captured the dramatic eruption of Russia's Krasheninnikov volcano, which erupted for the first time in approximately 600 years on the remote Kamchatka Peninsula in the country's far east ...

A long-dormant volcano has erupted on Russia's Kamchatka Peninsula just days after a magnitude 8.8 megaquake rocked the region on July 30. It is the second volcano to blow its top in the region in the ...