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A boy watches volcanic ash spewing from Mount Sinabung in Karo, North Sumatra, Indonesia, on Jan. 10, 2018. Mount Sinabung is one of Indonesia's 129 active volcanoes. (Xinhua/YT Haryono)
A boy watches volcanic ash spewing from Mount Sinabung in Karo, North Sumatra, Indonesia, on Jan. 10, 2018. Mount Sinabung is one of Indonesia's 129 active volcanoes. (Xinhua/YT Haryono)