A volcanic eruption Sunday prompted the temporary raising of the highest aviation alert, the Alaska Volcano Observatory (AVO) said Sunday.
원문출처 : http://www.cnn.com/2017/05/29/us/alaska-bogoslof-volcano-eruption/index.html
원문출처 : http://www.cnn.com/2017/05/29/us/alaska-bogoslof-volcano-eruption/index.html