The Meteorological Agency in Japan has issued a tsunami alert along the Pacific coast after detecting waves up to 40 cm (1.3 ft) high at 16 locations, stretching from Hokkaido to just northeast of Tokyo. Authorities have warned that larger waves could follow and urged residents in coastal areas to remain vigilant.
Tsunami warnings now span from Alaska and Hawaii down to New Zealand. In the U.S., the National Tsunami Warning Centre in Alaska predicts wave heights between 30 cm and 1.5 m (under one foot to five feet) along parts of Alaska, Oregon, Washington, and California. Officials caution that the impacts could last for hours or even more than a day.
Dave Snider, Tsunami Warning Coordinator, emphasised that tsunamis arrive in a series of surges — not just one wave — gaining power as they slow down and build up near the shore.
In Hawaii, evacuation shelters have opened in schools and community centres, while Honolulu has suspended late-night bus routes and advised motorists in low-lying areas to move to higher ground. Honolulu’s Fire Chief Sheldon Hao urged residents to evacuate early to avoid life-threatening situations.
Meanwhile, the National Weather Service’s San Francisco Bay Area office has issued a firm warning to the public: avoid the coastline and do not attempt to photograph the waves, as doing so could put both civilians and rescuers at risk.
In British Columbia, wave activity under 30 cm is expected to reach Tofino around 11:30 p.m. local time, and Langara Island by 10:05 p.m. Authorities have advised local governments to clear beaches and marinas.
On Russia’s Kamchatka Peninsula, where the earthquake struck closest, damage and evacuations have already been reported — highlighting the severity of the seismic event.