KARANGASEM, BALI, INDONESIA - NOVEMBER 28: General view of Mount Agung during an eruption while spewing volcanic ash into the sky on November on November 28, 2017 in Karangasem, Island of Bali, Indonesia. Indonesian authorities raised the state of alert to its highest level for the volcano, Mount Agung, after thick ash started shooting thousands of meters into the air with increasing intensity. Based on reports, as many as 100,000 villagers will need to leave the expanded danger zone while tens of thousands of tourists have been stranded due to airport closures. (Photo by Andri Tambunan/Getty Images)

Someone in a plane passing above the Popocatépetl volcano eruption filmed a portion of the explosion.