IRAZÚ VOLCANO NATIONAL PARK, Cartago — Here at the top of Costa Rica’s tallest volcano, the main crater looks like it was struck by a gigantic meteorite that vaporized on impact, leaving behind a semi ...

Irazú Volcano is one of our favorite day trips from San José, and not just for a view of the crater. Located 4 km from Sanatorio Durán, the Prusia sector of Irazú Volcano National Park is an excellent ...

Standing 11,260 feet tall, Irazu is the highest active volcano in Costa Rica (its last eruption was in 1994) and one of the most popular for Costa Rica visitors. From its peak on a clear day, visitors ...

Molten rock from Earth's hellishly hot mantle can punch through miles of overlying crust in a matter of months, a new study finds. Before the deadly 1963 eruption of Irazú volcano in Costa Rica, magma ...

Magma from deep within the Earth’s mantle can surge through a volcano in a matter of months rather than thousands of years or more, as previously thought, according to a study published Wednesday in ...

Molten rock from Earth's hellishly hot mantle can punch through miles of overlying crust in a matter of months, a new study finds. Before the deadly 1963 eruption of Irazú volcano in Costa Rica, magma ...

Alaska's erupting Pavlof volcano, in the Aleutian Islands, seen in a photo snapped from the International Space Station on May 18, 2013. (NASA Earth Observatory) Molten rock from Earth's hellishly hot ...