HOKKAIDO, Apr 20 (News On Japan) –
Japan’s weather agency and the Cabinet Office issued a ‘Hokkaido-Sanriku Offshore Subsequent Earthquake Advisory’ after an earthquake measuring upper 5 on Japan’s seismic intensity scale struck off Sanriku.
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Yugo Masutani, planning official at the Cabinet Office’s disaster management division, said there is around a 1% chance of a large-scale earthquake of magnitude 8 or higher occurring within the next week.
The advisory, issued on the night of April 20, warns that the likelihood of a new megaquake of magnitude 8 class or above occurring on the seabed of the Pacific Ocean — from off Nemuro in Hokkaido to off Sanriku in northeastern Japan — is higher than usual.
The advisory covers seven prefectures and regions: Hokkaido, Aomori, Iwate, Miyagi, Fukushima, Ibaraki and Chiba.
The Japan Meteorological Agency and the Cabinet Office urged residents to review earthquake preparedness measures and follow disaster-response guidance issued by the central government and local authorities.
Meanwhile, tsunami warnings that had been in place were downgraded to tsunami advisories for all affected areas.
Source: TBS
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