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Pacific Tsunami Alerts Persist After 8.8-Magnitude Kamchatka Quake

Tsunami warnings remain active across the Pacific with authorities assessing aftershocks alongside volcanic activity

SEVERO-KURILSK (Russian Federation), 30/07/2025.- A still image taken from a handout video provided by the Geophysical Center of the Russian Academy of Sciences shows a flooded area in Severo-Kurilsk, Sakhalin Region, Russia, 30 July 2025. Authorities in Russia's Sakhalin region have declared a state of emergency, after a 8.8 magnitude earthquake struck off Russia's Kamchatka Peninsula on 30 July, triggering tsunami warnings and evacuation orders. (Terremoto/sismo, Rusia) EFE/EPA/GEOPHYSICAL SURVEY OF THE RUSSIAN ACADEMY OF SCIENCES HANDOUT HANDOUT EDITORIAL USE ONLY/NO SALES
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Se activaron alertas por posible tsunami en todo el Pacífico tras fuerte terremoto de 8,8 en Rusia.
También se advirtió sobre posibles riesgos en zonas costeras de Alaska, la isla de Guam en el Pacífico y Hawái. (Foto: NOAA)

Overview

  • Local officials report no fatalities and only minor injuries after four-meter tsunami waves inundated Severo-Kurilsk and damaged port facilities.
  • Russia deactivated its regional tsunami alert once wave heights stabilized following the magnitude 8.8 earthquake.
  • Seismologists recorded multiple aftershocks, including a magnitude 6.2 tremor 12 hours later, as the Kliuchevskói volcano entered eruptive activity.
  • Forecasts ranged from under 20 centimeters on Mexico’s Pacific shore to up to three meters along sections of Japan’s coastline.
  • Pacific Rim nations from Alaska to Chile activated evacuations and maritime advisories and have started scaling back alerts as the wave threat diminishes.