Mount Anak Krakatau volcano spews hot ash as seen from Sunda Strait, Lampung Province, Indonesia, Dec. 28, 2018. Indonesia on Thursday raised the alert level for the erupting Anak Krakatau volcano to the second-highest, and ordered all flights to steer clear, days after it triggered a tsunami that killed at least 430 people. (Photo/Agencies)
Mount Anak Krakatau volcano spews hot ash as seen from Sunda Strait, Lampung Province, Indonesia, Dec. 28, 2018. Indonesia on Thursday raised the alert level for the erupting Anak Krakatau volcano to the second-highest, and ordered all flights to steer clear, days after it triggered a tsunami that killed at least 430 people. (Photo/Agencies)
Mount Anak Krakatau volcano spews hot ash as seen from Sunda Strait, Lampung Province, Indonesia, Dec. 28, 2018. Indonesia on Thursday raised the alert level for the erupting Anak Krakatau volcano to the second-highest, and ordered all flights to steer clear, days after it triggered a tsunami that killed at least 430 people. (Photo/Agencies)
Mount Anak Krakatau volcano spews hot ash as seen from Sunda Strait, Lampung Province, Indonesia, Dec. 28, 2018. Indonesia on Thursday raised the alert level for the erupting Anak Krakatau volcano to the second-highest, and ordered all flights to steer clear, days after it triggered a tsunami that killed at least 430 people. (Photo/Agencies)
