By the end of the day, about 7 p.m. Pacific Standard Time, data from 16 crystals was collected and analyzed. The data, which ...

Volcanoes are considered active if they have erupted sometime in ... Hotspots are also found in Iceland, in the Afar region of Africa, and under the ocean worldwide. Cinder cones are simple ...

Kilauea, one of the world's most active volcanoes, has been erupting on and off for nearly two months since it burst to life on Dec. 23. The eruption has been taking place at the volcano's summit ...

The tallest volcano in Europe, Italy's Mount Etna, and the world's most active volcano, Kilauea in Hawaii, erupting again.