Chile's Calbuco Volcano Erupts in Stunning Display

A huge ash cloud billowed over the mountainous region in Chile.

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.