An eastern Russian volcano has erupted for the first time in more than 500 years, which may have been related to an 8.8 magnitude earthquake last week, experts said.

Mount Lewotobi Laki Laki, one of Indonesia’s most active volcanoes, erupted for a second straight day, sending a column of volcanic materials and ash up to 18 kilometers (11 miles) into the sky early Saturday and blanketing villages with debris.