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Central Japan Reports Strong Quake in Nagano
An earthquake in Nagano caused strong shaking on April 18 and reminded residents of Japan’s constant seismic risk.
A magnitude 5 earthquake struck Nagano prefecture in central Japan on April 18, 2026, according to early reports carried by NHK.
The quake hit around midday local time and registered at an upper-5 intensity on Japan's seismic scale, a level that can make it difficult for people to move without holding onto something.
Authorities said it was too early to confirm the full impact, but the event quickly drew attention because of the strength of the shaking.
Japan sits in one of the most active earthquake zones in the world, which is why local systems for alerts, inspections, and emergency response are treated as a daily necessity.