5.1-magnitude earthquake hits Japan's Aomori, no tsunami risk
TOKYO, Nov. 20 (Xinhua) -- An earthquake with a preliminary magnitude of 5.1 struck Japan's Aomori prefecture on Wednesday, local weather agency said. The temblor occurred at around 3:40 p.m. local time, registering a maximum intensity of 4 on the Japanese seismic scale. Authorities confirmed there was no risk of a tsunami.