The quake struck at 11.16 a.m. ( 1716 GMT ) and was centred 10 miles ( 16 km ) south of the port of Quepos , which is 90 miles ( 140 km ) south of the capital San Jose , the Costa Rican Volcanic and Seismologicial Observatory said .
<response> The quake struck at 11.16 a.m. ( 1716 <misc>GMT</misc> ) and was centred 10 miles ( 16 km ) south of the port of <location>Quepos</location> , which is 90 miles ( 140 km ) south of the capital <location>San Jose</location> , the <organization>Costa Rican Volcanic and Seismologicial Observatory</organization> said . </response>