The Concepcion volcano in Nicaragua sent huge columns of ash into the sky in eruptions that prompted a ripple of small earthquakes, AP quoted local seismologists as saying today. The volcano, one of two on an island in the region's largest lake, erupted Saturday night and related earthquakes continued to rattle the area on Sunday. No one was injured by the blast, Nicaragua's Institute of Territorial Studies said in a statement. The 1,610-meter (5,282-foot) volcano is located 100 kilometers (60 miles) southeast of the capital, Managua, on an island popular with adventure tourists in Lake Nicaragua, Central America's largest lake. Ash rained down on local communities on Sunday, as strong winds carried it to toward the capital, the institute said. The Concepcion volcano last erupted in 2005.