A magnitude 7.0 earthquake has struck near the coast of Peru, the German Research Center for Geosciences (GFZ) says.

The quake was at a depth of 10 km (6.21 miles), GFZ said.

There were no immediate damage reports from the authorities.

GFZ earlier pegged the earthquake at a magnitude of 6.9.

The US National Tsunami Warning Center said there was a tsunami threat from the quake, based on available data, having earlier said there was no tsunami threat.

It estimated that the tsunami waves were reaching from 1 to 3 m above the tide level along some parts of Peru's coast.