Alaska’s Redoubt Volcano is erupting explosively for a fifth time since 10:38 p.m. local time Sunday evening (2:38 a.m. Eastern time). Subsequent eruptions occurred at 11:02 p.m., 12:14 a.m., 1:39 a.m. and 4:37 a.m. The U.S. Geological Survey’s Alaska Volcano Observatory estimates the initial explosion sent ash up to 50,000 feet in the air. The ash appears to be heading north away from Anchorage. Alaska Airlines has canceled flights, according to the Associated Press.