Tokyo: A strong earthquake struck off the northern coast of Japan late on Monday, prompting tsunami warnings and sending people in coastal areas to higher ground. The Japan Meteorological Agency reported the magnitude as 7.5 and said the earthquake hit near Aomori and Hokkaido regions at around 11.15 pm local time.
Following the quake, authorities issued a tsunami alert for the northeastern coastline. Sirens warned residents to move away from beaches and low lying areas. Initial alerts warned of possible waves up to three meters high.
However, later observations showed that the tsunami waves were much smaller. The highest measured wave was about 70 centimetres in some ports in Iwate Prefecture, while many other coastal areas recorded waves around 50 centimetres. By early Tuesday morning, officials downgraded the warning and later lifted all tsunami advisories as the situation stabilised.
Emergency officials said there were no reports of major damage. At least 23 people were injured, most from falling objects or collapsed shelves as strong tremors shook homes and buildings. Rail services were temporarily suspended and some areas experienced power outages, but most services are slowly returning to normal.
Authorities also inspected nearby nuclear facilities and confirmed there were no signs of damage or risk. Prime Minister Fumio Kishida said emergency teams were monitoring the situation and providing support where needed.
Experts warn that aftershocks may continue in the coming days and advised residents to stay alert. People living close to the Pacific coast have been asked to avoid the shoreline until authorities confirm full safety.
Japan is one of the most earthquake prone countries in the world and regularly practices evacuation drills. Many residents said the quick alerts and emergency systems helped reduce panic and keep people prepared.
For now, the country is returning to normal life while remaining watchful for any further activity.