Residents in nearby towns were evacuated because of the volcanic activity.
The 6,500-foot Calbuco volcano last erupted in 1972 and is considered one of the most potentially dangerous among Chile’s 90 active volcanos.
Time-lapse video footage showed an ash cloud forming as the volcano erupted.
People stood and watched as the eruption occurred -- one of mother nature’s most stunning sights.
The Associated Press contributed to this report.