A dormant volcano in Ethiopia erupted after 10,000 years of silence. This event shows how the world's little-known volcanoes pose the greatest threat.

To be considered active, a volcano must have erupted at some point during the Holocene, but dormant and extinct are a little harder to define.

Although dormant volcanoes are usually quiet, “zombie volcanoes” like Bolivia’s Uturuncu display a surviving amount of activity for a volcano that hasn’t erupted in 250,000 years. A new study uses ...

For centuries, Mount Taftan has been considered dormant volcano, a quiet sentinel in the Makran region of southeastern Iran. But recent satellite data shows subtle signs of swelling at its summit, ...

Ecuador has several dormant volcanoes not only challenging in themselves, but great practice for bigger peaks. Here is a first-person account of such a climb.

A long-dormant volcano in Russia’s Far East erupted Sunday for the first time in hundreds of years, scientists said, spewing an ash cloud several miles high. The unusual eruption in Russia’s remote ...

The volcano Uturuncu, located in the Central Andes mountains, has seemingly risen from the dead. While the volcano has not erupted in more than 250,000 years, it has recently shown signs of activity ...

ADDIS ABABA, Ethiopia (AP) — Volcanic activity in northern Ethiopia’s long-dormant Hayli Gubbi volcano subsided Tuesday, days after an eruption that left a trail of destruction in nearby villages and ...

A volcano that has been dormant for hundreds of thousands of years could be gearing up for a massive explosion, according to new research. Scientists have measured signs of unrest at the Taftan ...