Overview
- Japan’s meteorological agency warned of possible waves up to 3 meters after the offshore quake, though initial surges of roughly 20–50 centimeters were recorded at ports in Aomori, Iwate and Hokkaido.
- Prime Minister Sanae Takaichi activated an emergency task force as authorities assessed injuries reported in Hachinohe and investigated fires in Aomori, while some rail services were suspended and limited outages were noted.
- The earthquake’s epicenter was about 80 kilometers off Aomori at roughly 50 kilometers depth, with ‘upper 6’ shaking observed in parts of Aomori and officials cautioning that strong aftershocks could follow.
- Power companies and the chief cabinet secretary said checks at regional nuclear plants found no abnormalities, with inspections continuing across additional facilities.
- In Alaska, a magnitude‑7.0 quake near the Yukon border two days earlier produced no U.S. tsunami threat but set off a vigorous aftershock sequence, with more than 160 tremors logged in 24 hours.