Magnitude 7.4 Earthquake Strikes Off Aomori Coast, Tsunami Warning Issued

A powerful magnitude 7.4 earthquake jolted the Sanriku region off the coast of Aomori Prefecture on the afternoon of April 20, prompting immediate tsunami warnings.

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A magnitude 7.4 earthquake occurred off the coast of Aomori Prefecture.

The Japan Meteorological Agency issued advisories for waves up to 3 meters high, urging residents in Aomori and Iwate prefectures to evacuate to higher ground. The quake, originating at a shallow depth of 10 kilometers, registered an intensity of Upper 5 in parts of Aomori and Iwate, a level that can cause panic and topple unsecured furniture.

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Intensity 5 Upper was recorded in some areas of Aomori Prefecture.

Even as far south as Tokyo, residents felt tremors registering Intensity 3, causing buildings to sway and some elevators to temporarily halt operations. This event underscores the persistent seismic risk Japan faces, a reality that shapes daily life and preparedness measures across the archipelago. While international news will focus on the immediate threat of the earthquake and tsunami, for us in Japan, this is a stark reminder of the constant need for vigilance and robust disaster response systems.

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Tsunami warnings were also issued, with tsunami waves of up to 3 meters expected in Iwate and Aomori prefectures, urging immediate evacuation.