The U.S. Geological Survey said the quake's epicenter was 55 miles (88 kilometers) north of Coquimbo, Chile, and had a depth of 37 miles (61 kilometers). It struck Wednesday shortly after 4 p.m. local time. The quake was mildly felt in the capital of Santiago, where it shook buildings and in several regions from the Atacama desert in the north to the port of Valparaiso.
Chile's emergency services office said no damages to infrastructure were immediately reported and the country's oceanographic service dismissed the possibility of a tsunami.
Chile is highly earthquake-prone. A massive 8.8-magnitude quake in 2010 caused a tsunami that obliterated much of the coastal downtown of the central Chilean city of Constitucion.