TOKYO — April 20, 2026
A powerful 7.5-magnitude earthquake struck off the northeastern coast of Japan’s Honshu island late Monday afternoon, triggering widespread panic and an immediate "Red" tsunami warning for several prefectures.
The Japan Meteorological Agency (JMA) reported that the quake occurred at 4:53 PM local time at a shallow depth of 10 kilometers (6 miles), with the epicenter located approximately 100 kilometers off the Sanriku coast in the Pacific Ocean.
Tsunami Arrival and Evacuation Orders
Within minutes of the tremor, tsunami waves began reaching the shore. Kuji Port in Iwate Prefecture recorded an initial surge of 80 cm (32 inches), while Miyako Port saw a 40 cm wave.
However, meteorologists have warned that the first wave is rarely the largest. A formal warning remains in place for Iwate, Aomori, and Hokkaido, where waves up to 3 meters (10 feet) are anticipated.
Prime Minister Sanae Takaichi convened an emergency task force at the Prime Minister's Office and addressed the nation via a televised broadcast. "Human and material damage is currently being confirmed," Takaichi stated, while urging citizens in coastal areas to "seek higher ground immediately and do not return until all warnings are lifted."
Infrastructure and Nuclear Status
The earthquake registered an "Upper 5" on Japan's 7-point seismic intensity scale in Aomori, a level strong enough to topple unsecured furniture and crack concrete walls.
Nuclear Facilities: Despite the intensity, major nuclear operators including TEPCO and Tohoku Electric Power Co. report no "abnormalities" at the Fukushima Daiichi, Daini, or Onagawa plants. Checks are continuing as a precaution.
Transport: Bullet train services (Shinkansen) were immediately suspended in Aomori and surrounding regions to inspect tracks for damage.
Power: Local utilities are monitoring for potential outages, though no large-scale blackouts have been reported yet.
A Stark Anniversary
The timing of the disaster is particularly poignant, occurring just weeks after Japan marked the 15th anniversary of the 2011 Great East Japan Earthquake. Broadcasters like NHK have been running continuous emergency alerts, with "Tsunami!
Authorities warn that aftershocks of similar magnitude could occur over the next week. Residents are advised to stay away from river mouths and coastal areas, as the surge can travel several kilometers inland through waterways.
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