A 6.7-magnitude earthquake struck off the coast of Aomori Prefecture in northeastern Japan on Friday morning, prompting the Japan Meteorological Agency (JMA) to issue a tsunami warning. The quake occurred at a depth of about 20 kilometers at 11:44 a.m. local time, according to JMA reports.

This tremor followed only days after a stronger 7.5-magnitude earthquake hit the same region, raising concerns about ongoing seismic instability. Authorities have urged residents across a wide area—from Hokkaido in the north to Chiba east of Tokyo—to remain alert for possible aftershocks or additional quakes within the coming week.

Japan, located along the Pacific “Ring of Fire,” experiences frequent seismic activity. The country still bears memories of the devastating 2011 Tohoku earthquake and tsunami, which killed or left missing over 22,000 people and triggered the Fukushima Daiichi nuclear disaster. The latest events have renewed public attention to Japan’s disaster preparedness and early warning systems.