Strong quake shakes Hokkaido as authorities urge vigilance

Strong Quake Hits Hokkaido

A strong earthquake struck eastern areas of Hokkaido Prefecture on Saturday, with authorities urging vigilance for potential aftershocks.

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

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 quake occurred at the boundary of two plates, where an ocean plate is subducting beneath a land plate, off the southeastern coast of Hokkaido.

Author's summary: Strong quake hits Hokkaido, Japan.

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

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