This geological formation appears at Meke Crater Lake in Karapınar, Konya, Turkey. A volcanic eruption created a cone inside the original crater lake. The result is a volcano within another volcanic ...

A volcano on Atka Island in the Aleutians has been showing increasing signs of unrest over the past two weeks, and scientists say the uptick in activity is significant enough to warrant a closer watch ...

The Laacher See volcano in Germany has emitted a new deep signal, and scientists are analyzing changes beneath the surface ...

Deondre Smith Jr., 9, and his brother Devonne, 7, searched for their favorite rock Friday among thousands for sale at the opening day of the Roxy Ann Gem & Mineral Show in southern Oregon’s Central ...