A powerful 7.4–7.5 magnitude earthquake struck off the northern coast of Japan on Monday, triggering tsunami warnings and emergency evacuations across several coastal regions. The quake occurred in the Pacific Ocean near the northeastern part of the country, with tremors felt as far as Tokyo.
Tsunami Waves Recorded
Shortly after the earthquake, authorities confirmed that a tsunami wave measuring around 80 centimetres had reached parts of the northern coastline, including ports in Iwate Prefecture.
Officials warned that while the first wave was moderate, larger waves of up to 3 metres could follow, prompting urgent evacuation advisories for residents living near coastal areas.
Immediate Response and Evacuations
Japan’s Meteorological Agency (JMA) quickly issued tsunami alerts for regions including:
- Iwate
- Aomori
- Hokkaido
Residents were instructed to move to higher ground immediately and stay away from the coast, as tsunami waves can arrive repeatedly and grow stronger over time.
Thousands of people were evacuated from vulnerable coastal towns such as Otsuchi and Kamaishi—areas that were severely affected during the devastating 2011 tsunami disaster.
Impact and Damage
As of now:
- No major casualties or severe damage have been reported
- Bullet train services and highways were temporarily suspended
- Strong shaking made it difficult for people to stand or move in some areas
Authorities also confirmed that no abnormalities were detected in nearby nuclear facilities, easing concerns about potential radiation risks.
Risk of Aftershocks
Experts have warned that aftershocks are likely in the coming days, and people in affected regions should remain alert.
Why Japan Faces Frequent Earthquakes
Japan lies along the Pacific “Ring of Fire”, one of the most seismically active zones in the world. This makes the country highly prone to earthquakes and tsunamis, with frequent seismic activity recorded throughout the year.
Final Situation
While the initial tsunami wave measured 80 cm, officials stress that even smaller waves can be dangerous, capable of sweeping people off their feet. Authorities continue to monitor the situation closely and have urged the public to follow safety instructions until all warnings are lifted.
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