Tokyo, Dec 30 (TIWN) An earthquake measuring 5.1 on the Richter scale struck Japan's Ibaraki prefecture on Wednesday, the weather agency said, adding that no tsunami warning was issued.

According to the Japan Meteorological Agency (JMA), the temblor, which occurred at 9.35 a.m., was centred inland with its epicentre at a latitude of 36.4 degrees north and a longitude of 140.6 degrees east, with a depth of 60 km, reports Xinhua news agency.