On the morning of 30th, a magnitude 8.7 earthquake occurred in the Kamchatka Peninsula in Russia's Far East, causing a tsunami to reach the eastern coast of Hokkaido, Japan. The expected height was lower at 30 cm compared to the 3 m prediction. The Japanese government advised residents to evacuate to areas far from the coast and to higher rent(expense) areas, noting that a larger tsunami could arrive in the future.
According to NHK, at 11:01 a.m. on the same day, a tsunami of 30 cm was observed at the coast of Nemuro City, Hokkaido, at 10:30 a.m., and another 30 cm tsunami was observed at Kushiro Port at 10:42 a.m.
Earlier, the Japan Meteorological Agency issued a tsunami warning for Japan's eastern Pacific coast areas, including Hokkaido and Wakayama prefecture, forecasting a maximum tsunami height of 3 m. Tsunami advisories were also issued for the coasts of Osaka, Shikoku, Kyushu, and Okinawa, predicting a maximum tsunami height of 1 m in those areas.
Although the tsunami height is lower than expected, NHK advises not to let your guard down and to remain in safe locations. Japans' government spokesperson, Hiroshi Hayashi, stated during a briefing on the morning of the same day, "Residents in areas where warnings have been issued should evacuate immediately to higher rent(expense) areas or safe buildings. Even if a tsunami arrives, subsequent waves may be larger, so please pay attention to tsunami information and remain in a safe place until the warning is lifted."
Russian media reported that tsunami heights of approximately 3 to 4 m were observed in certain areas of the Kamchatka Peninsula. It is said that several people sustained minor injuries at local airports due to the earthquake.