A strong earthquake rattled Peru's southern coast on Friday, but no damage or injuries were reported.

The magnitude 6.4 quake struck at 5:48 a.m. below the floor of the Pacific Ocean, 56 miles northwest of the coastal city of Pisco, according to Peru's Geophysics Institute. The U.S. Geological Survey reported the quake as magnitude 6.5.

The earthquake was felt as a long shudder in the capital, Lima, and inland in the Andean provincial city of Huancavelica. But it caused the most alarm in Ica, a coastal city 165 miles to the southeast, where local radio reports said panicked residents rushed from their homes into streets and parks.