Strong quake shakes Hokkaido as authorities urge vigilance

Strong Earthquake Hits Hokkaido, Authorities Urge Vigilance

A strong earthquake struck eastern areas of Hokkaido Prefecture on Saturday, prompting warnings of potential future quakes.

The quake, with a magnitude of 5.8, was measured at a lower 5 on the Japanese seismic intensity scale in the city of Nemuro. It occurred at 1:40 a.m. at a depth of about 40 kilometers off the southeastern coast of the Nemuro Peninsula.

According to the Meteorological Agency,

there was no threat of tsunami
, but people in affected areas are advised to remain alert for more temblors measuring up to a lower 5 for about a week.

The earthquake occurred at the boundary of two plates, where an ocean plate is subducting beneath a land plate.

Author's summary: Strong earthquake hits Hokkaido, prompting vigilance.

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The Japan Times The Japan Times — 2025-10-25

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