A strong earthquake measuring 6.9 on the Richter scale struck off the coast of Japan’s Iwate Prefecture on Sunday evening, shaking northern regions and triggering a tsunami advisory. The quake occurred at a depth of about 16 kilometers at 5:03 p.m. local time and was followed by several aftershocks. Authorities immediately issued a tsunami alert for coastal areas, warning of possible waves reaching up to three meters. Residents were urged to move away from shorelines as a precaution.
Fortunately, there were no immediate reports of casualties, significant property damage, or any abnormalities at the nearby nuclear power plants. The Japan Meteorological Agency later reported that tsunami waves between 10 and 20 centimeters were observed at Ofunato, Miyako, Kamaishi, and Kuji coastal areas. While these waves remained relatively small, officials cautioned that tsunamis can come in multiple surges, sometimes increasing in size hours after the initial quake.
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After nearly three hours of monitoring, the tsunami advisory was officially lifted. However, meteorological officials warned that the region may still experience strong aftershocks for several days, particularly within the next 72 hours. Several additional tremors were recorded in Iwate and the northern island of Hokkaido, causing temporary disruptions to transportation services. Bullet trains operated by JR East were briefly suspended before resuming normal service later in the evening.
Japan’s northeastern region remains one of the world’s most earthquake-prone zones, situated along the Pacific “Ring of Fire.” The area has a tragic history with seismic disasters, most notably the catastrophic 2011 earthquake and tsunami that devastated Fukushima, killing nearly 20,000 people. That disaster also caused a nuclear meltdown, displacing thousands who remain unable to return to their homes even after more than a decade.
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While Sunday’s quake caused no major damage, it served as a stark reminder of Japan’s constant vulnerability to natural disasters. Authorities continue to urge residents to stay alert, review evacuation plans, and remain cautious for potential aftershocks. Officials stressed that continuous preparedness and early warning systems remain vital to minimizing risk in one of the most seismically active regions on Earth.