SANTIAGO, Chile (AP) _ A mild earthquake rocked a wide area in northern Chile on Tuesday, but there were no immediate reports of victims or damage, officials said.

The 5.1-magnitude tremor hit at 11:20 a.m. local time (11:20 a.m. EDT) the National Emergency Office said.

It was felt in some 15 cities and villages in a stretch of about 350 miles in Chile's narrow territory, the Emergency Office said.

The affected area includes the port cities of Arica, in the border with Peru, and Iquique, 1,050 miles north of the capital Santiago.