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7h ago

Magnitude 7.4 Quake Off Russia’s Kamchatka Triggers Tsunami Warnings

Authorities urged coastal caution during ongoing parameter updates in a region still on edge after July’s 8.8 quake.

Two people (C) can be seen sitting out on a breakwater after much of coastal Japan went on tsunami alert following a 8.7 magnitude quake in the sea off eastern Russia, along Tokyo Bay in Chiba City, Chiba prefecture on July 30, 2025. (Photo by Philip FONG / AFP) (Photo by PHILIP FONG/AFP via Getty Images)
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A working seismograph is shown in a display about earthquakes during an emergency drill.
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Overview

  • USGS measured the offshore quake at magnitude 7.4, 39.5 km deep, about 111 km east of Petropavlovsk-Kamchatsky.
  • The Pacific Tsunami Warning Center forecast hazardous waves near affected Russian coasts, with guidance indicating up to about 1 meter possible in some areas.
  • Kamchatka governor Vladimir Solodov announced a tsunami threat and asked residents to avoid beaches including Khalaktyr and to follow official instructions.
  • Seismological readings varied as GFZ reported magnitude 7.1 at roughly 10 km depth, and USGS revised its initial 7.5 estimate downward.
  • Japan’s meteorological agency reported only minor tidal fluctuations expected and no damage risk, while early local reports showed strong shaking with no confirmed injuries or major damage yet.