The Greek island has a long history of earthquakes, but what is causing the recent series of quakes has scientists perplexed.

Millions of people around the world live near one of the roughly 1,500 active volcanoes on Earth—from Italy’s Campi Flegrei to Indonesia’s Merapi to the United States’ Mount Rainier.

The Ring of Fire is home to 75% of the world's volcanoes and 90% of its earthquakes. 2 min read The Ring of Fire is a roughly 25,000-mile chain of volcanoes and seismically active sites that ...

This story appears in the May 2010 issue of National Geographic magazine ... before the top 1,300 feet of the volcano—more than three billion cubic yards of mud, ash, and melting snow ...

“Glaciers cover about 12 percent of Iceland and there are quite a few volcanoes beneath ... past found almost nowhere else,” says National Geographic fellow Jonathan Tourtellot, who ...

National Geographic takes viewers on an extraordinary ... from the lush valley floors of Yosemite to the constantly erupting volcanoes of Hawai'i.

Iceland has at least 25 active volcanoes and many hot springs and geysers. There are many advantages of geothermal energy. It can be extracted without burning a fossil fuel such as coal ...

Despite being more than 600 kilometres from the nearest volcano, the river averaged 86C. According to National Geographic, that is hot enough “to cook a small animal in seconds.” What makes it ...