Puerto Rico hit with 6.4 magnitude earthquake, islandwide blackout reported

A 6.4 magnitude earthquake was registered off the coast of Puerto Rico on Tuesday, killing at least one person and causing an island-wide blackout.

The U.S. Geological Survey said the quake hit just south of the island at 4:24 a.m. at a shallow depth of roughly six miles. A tsunami warning was not issued.

At least one person has died in the quake. Teacher Rey González told the Associated Press that his uncle was killed when a wall collapsed on him at the home they shared. He said 73-year-old Nelson Martínez was disabled and that he and his father cared for him.