A 5.5 magnitude earthquake jolted Japan's Aomori prefecture on Monday.According to Japan's Meteorological Agency, the temblor was registered at level 4 on the Japanese seismic intensity scale of 7, Xinhua new agency reported.The epicentre was located at 41.5 degrees north latitude and 142.0 degrees east longitude, at a depth of 70 km.There were no immediate reports of damage and injuries.