Strong Quake Rattles Chile

A strong 6.3-magnitude earthquake shook far northern Chile on Monday, experts from the U.S. Geological Survey said.

The quake struck at 1635 GMT about 90 kilometers northeast of Calama, a city of more than 100,000 people in the heart of the Atacama desert in the Antofagasta region, the USGS said.

The epicenter of the quake was at a depth of 111.3 kilometers, the U.S.-based quake monitoring group said.

No immediate damage or casualties were reported.

The Pacific Tsunami Warning Center measured the earthquake at 6.6-magnitude, but said no destructive widespread tsunami threat existed.