Indonesia raises the alert level for the erupting Anak Krakatau volcano to the second-highest, and orders all flights to steer clear, days after it triggered a tsunami that killed at least 430 people.

HILO, Hawaii — One of the world’s most active volcanoes, Kilauea on Hawaii’s Big Island, began spewing lava from the north vent Wednesday, the latest event in an ongoing eruption that began ...

IN the last issue of the Bulletin of the St. Petersburg Academy of Sciences (vol. xxix. No. 2), M. Rykatcheff publishes a very interesting paper on the atmospheric waves produced by the Krakatoa ...

Mars orbiter that launched from Florida captures 1st-ever pic of volcano above clouds Known as Arsia Mons, the volcano on Mars dwarfs Earth’s tallest volcano, Mauna Loa in Hawaii.