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Pacific Tsunami Alerts Downgraded After 8.8-Magnitude Kamchatka Earthquake

Pacific tsunami warnings have been downgraded across many regions with local evacuations and closures in place during aftershock monitoring.

Japon: quatre baleines échouées avant l'arrivée du tsunami
Un drapeau signale une alerte au tsunami sur une plage de Chiba, dans l'est du Japon, le 30 juillet 2025
Image
Une femme est morte au Japon alors qu’elle évacuait dans la préfecture de Mie dans le centre du pays.

Overview

  • Tsunami warnings have been downgraded across large swaths of the Pacific, but evacuations persist in select coastal areas.
  • No major casualties have been reported to date, with only localized flooding in Severo-Kurilsk and precautionary evacuations at the Fukushima Daiichi plant.
  • At least six aftershocks, including magnitudes of 6.9 and 6.3, have rattled the Kamchatka region, and experts warn tremors up to magnitude 7.5 could follow.
  • Ports in Peru have closed and Japanese rail services remain suspended as governments assess ongoing tsunami and seismic threats.
  • Monitoring agencies USGS, PTWC and JMA are tracking ocean swells and seismic activity during continued risk of additional tsunami waves.