One of Japan's most active volcanos erupted spectacularly Friday evening with a fiery blast that sent lava rolling down its slope.<br />Japan's Meteorological Agency said Sakurajima on the southern island of Kyushu erupted at around 7 p.m. .<br />The Meteorological Agency banned entry to the area, expanding an existing no-go zone around the crater to a 2-kilometer radius, according to public broadcaster NHK.<br />Friday's eruption, while dramatic, was average compared to Sakurajima's past eruptions, Kyoto University volcanologist Kazuhiro Ishihara told NHK.<br />The Japanese archipelago sits atop the Pacific "Ring of Fire," an arc of volcanoes and fault lines in the Pacific Basin, and has more than 100 volcanoes.
