The epicentre of the huge tremor was 47 miles south of Putre, Chile.
The earthquake will have been felt as far away as neighbouring Peru and Boliva, according to a USGS shake map.
Peru was devastated by a deadly earthquake just over a week ago on January 14 leaving at least 65 people injured.
No reports of casualties or damage from this latest quake have emerged so far.
More to follow…