Major 7.7-magnitude quake hits off Japan, tsunami warning downgraded

A powerful earthquake struck off northeastern Japan on 20 April 2026. It was first reported as magnitude 7.4, and Kyodo News wrote that the meteorological agency revised it up to 7.7. A tsunami warning was issued for northeast and northern Japan, with waves of up to 3 metres expected, and it was then downgraded to advisories and lifted.

Anadolu wrote that Japan warned of more tremors, and Clarín reported a warning that a 'megaquake' could follow. Phivolcs said the quake posed no tsunami threat to the Philippines.