(CNN) — Here's some background information about volcanoes, mountains that open downward to a reservoir of molten rock. Facts: More than 80% of the Earth's surface, both above and below sea level, is ...

MANILA, Philippines — A new dark lava dome emerged at Mayon Volcano Thursday morning, January 8, as the volcano released lava and pyroclastic density currents that demonstrated the volcano’s rising ...

MANILA, Philippines — The Mayon Volcano is exhibiting signs of increasing unrest, with bright red magma and glowing pyroclastic density currents called "uson" continuing to stream from its summit as ...

Volcanology encompasses the study of volcanoes, the dynamics of magma ascent, and the mechanisms underlying diverse eruptive phenomena—from effusive lava flows to explosive events. Recent research has ...

Nearly 10 yrs of drone surveys at Merapi volcano highlights the importance of hydrothermal weakening and structures hidden beneath younger lavas. A fracture system that formed in 2012 was subsequently ...

Lava is molten rock from a volcano that reaches the Earth’s surface. Liquid rock below the Earth’s surface is referred to as magma. More than 50% of the world’s active volcanoes above sea level ...