
Mount Sinabung spews out volcanic ash in North Sumatera, Indonesia, on June 15, 2017. Mount Sinabung is one of Indonesia's 129 active volcanoes. (Xinhua/Lana Priatna)

Mount Sinabung spews out volcanic ash in North Sumatera, Indonesia, on June 15, 2017. Mount Sinabung is one of Indonesia's 129 active volcanoes. (Xinhua/Lana Priatna)