Washington: A 6.0 magnitude earthquake struck in the Pacific off western Costa Rica on Thursday, US seismologists reported.
The United States Geological Survey said the quake occurred near the city of Sandoval at 12:29 GMT. It was not immediately known if there were casualties or damage.
Quake-prone Costa Rica was rattled in September of last year by a powerful 7.6-magnitude earthquake which briefly knocked out power and caused widespread panic, but no known deaths or injuries.
The Pacific Tsunami Warning Center in Hawaii today did not immediately issue a warning over the threat of a tidal wave from today`s quake.