Tsunami Warning Issued with Estimated Maximum Wave Height at 3 Meters; 1-Meter Tsunami Expected to Reach Tokyo at 11:30 a.m. (UPDATE 3)

The Yomiuri Shimbun

10:07 JST, July 30, 2025

The Japan Meteorological Agency issued a tsunami warning and advisory for the Pacific coast from Hokkaido to Okinawa in Wednesday morning. The estimate of maximum wave height is now expected to be 3 meters.

One-meter tsunami is expected to reach to Tokyo at 11:30 a.m., 3-meter tsunami to the Kujukuri area of Chiba Prefecture at 10:30 a.m. and 1-meter tsunami to Osaka Prefecture at 12 p.m.

Earlier, the JMA issued an tsunami advisory with estimated maximum wave height of 1 meter, but now it has raised an alert level and expected wave height.

An earthquake with an estimated magnitude of 8.0 occurred around the Kamchatka Peninsula at 8:25 a.m., according to the JMA.