Chile issued a top-level red alert Sunday for its Copahue volcano, in the south on the Andean border with Argentina, as it rumbled to register a greater potential threat.
A New Zealand volcano used as a backdrop to "The Lord of the Rings" films erupted on Wednesday, sending a column of ash two kilometres (1.2 miles) above the North Island.
A series of powerful eruptions of Guatemala's Volcano of Fire blanketed villages in dense clouds of ash, and prompted evacuation orders for over 33,000 people.
A New Zealand volcano has erupted unexpectedly after lying dormant for more than a century, spewing an ash plume that disrupted flights and closed highways.