Three well-known volcano types appear around the world. They are shield volcanoes, cinder cones, and composite volcanoes—which are also called stratovolcanoes. This week on Wondrium Shorts, learn to “lava” all three. http://ow.ly/25bO50JZQT0 | The Great Courses

Lava spewed from Hawaii's Kilauea volcano on Saturday, December 6, footage from the United States Geological Survey (USGS) captured. The USGS Hawaiian Volcano Observatory said the north vent of the volcano had shown heightened activity and "increasing spattering events" while the south vent had a moderate glow overnight. Low to moderate tremors were also recorded during the eruption. Located in a closed area of Hawaii Volcanoes National Park, Kilauea is one of the world's most active volcanoes a