June 21, 2020, Sleman, YOGYAKARTA SPECIAL REGION, INDONESIA: Black ash smoke and hot gas from Mount Merapi soared into the sky as high as 6 kilometers (3.7 miles). Mount Merapi, with an altitude of 2,968 meters in Yogyakarta, Indonesia, erupted ash and hot gas into the air accompanied by a roar that was heard up to 12 kilometers from the summit of Mount Merapi. This eruption was recorded on a seismogram with a maximum amplitude of 75 mm and 5 minutes and 28 seconds duration.