WASHINGTON (Reuters) - A strong quake of magnitude 6.5 struck north off Puerto Rico on Monday but did not trigger a tsunami, the U.S. Geological Survey said.
It said the quake, initially reported as a magnitude 6.4, was very shallow, at a depth of only 17.7 miles below the seabed. It struck at 12:01 a.m. (0401 GMT), 35 miles north of the town of Hatillo.
The Tsunami Warning Center said there was no danger the quake had triggered a tsunami.
(Reporting by Sandra Maler; Editing by Eric Walsh)