People evacuate to local schools in Calbuco, 56 km from the city of Puerto Montt on the Pacific coast of southern Chile, due to a tsunami alert after a 7.6-magnitude earthquake on Dec 25, 2016. [Photo/VCG]

Chile is the world's leading copper producer, but there are no major mines located near the zone affected by the earthquake.

Chile's state-run oil company ENAP said its Bio Bio refinery in southern Chile was operating normally. The Puerto Montt airport was operating normally, a spokesman said.

Latam Airlines Group SA and Sky Airlines said their southern Chile routes were operating without major delays.

Chile, located on the so-called "Pacific Ring of Fire," has a long history of deadly quakes, including a 8.8 magnitude quake in 2010 off the south-central coast, which also triggered a tsunami that devastated coastal towns.