According to the first information, the quake happened in the depth of 10 kilometres, four kilometres off the island, or 37 kilometres southeast of Rijeka.
A wider area in western Croatia felt the tremor.
ZAGREB, 16 Feb (Hina) - An earthquake measuring 5.2 on the Richter scale shook the northern Croatian island of Krk on Thursday morning, according to the information of the European Mediterranean Seismological Centre (EMSC).