A volcano that erupted after being asleep for more than 100,000 years is leading more volcanologists to say we must redefine volcano activity to ensure eruptions don't surprise us.

A geological study of Greece’s Methana volcano reveals it erupted after a dormant period of about 100,000 years, challenging the 10,000-year benchmark for declaring volcanoes extinct. The research ...

For years, scientists believed the volcano and its surrounding ecosystem were extinct.

The youngest eruption of the Methana volcano (brown) flowing into the sea, with limestone in the background. The Methana volcano in Greece appeared dormant for over 100,000 years, but magma was ...

A volcano that lies close to the border between Iran and Pakistan may be nearing an eruption again for the first time in more than 700,000 years, a study has suggested. Scientists say that the Taftan ...

The last eruption of Greece’s Methana volcano was around 250 B.C.E. Ever since that event, which was recorded by the Greek historian Strabo, the mountain has lurked silently, just across the Saronic ...

In southwest Arkansas, the state government runs what might be the world’s most unusual diamond mine. For the price of a movie ticket, anyone can dig for diamonds at Crater of Diamonds State Park—and ...

Romania’s Ciomadul volcano last erupted some 30,000 years ago, but as a new study published in Earth and Planetary Science Letters reports, between 5 to 14 cubic miles of magma still simmer below the ...

For more than 100,000 years, the Methana volcano in Greece appeared dormant. No lava, no explosions, no ash clouds. It appeared extinct, like many other volcanoes today. An international research team ...