A 6.1-magnitude earthquake has struck near the coast of Ecuador, just days after the South American country was devastated by a deadly 7.8-magnitude quake, US experts said Wednesday.

The epicenter of the quake, which struck at 8:33 GMT and was at a depth of 15.7 kilometers (9.8 miles), was located 25 kilometers west of Muisne and 73 kilometers west-southwest of Propicia, the US Geological Survey said.