The powerful quake, at a depth of 135 kilometers (84 miles), hit at approximately 5:19 am (0819 GMT) with an epicenter about 67 kilometers southeast of the San Pedro de Atacama tourist zone, US seismologists said.
Chile's National Office of Emergency said the 'medium-intensity' quake was felt in the northern regions of Tarapaca, Antofagasta and Atacama.
Chile lies on what is known as the 'Ring of Fire' - an arc of fault lines that circles the Pacific Basin and is prone to frequent earthquakes and volcanic eruptions.
In 2010 another quake measuring 8.8, also followed by a tsunami, struck the center and south of the country, killing more than 500 people.
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