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Japan mistakenly issues warning for magnitude 9.9 earthquake

Japan issued a false emergency alert for a magnitude 9.9 earthquake, startling the nation during the busy lunch hour. The Japan Meteorological Agency mistakenly estimated the massive magnitude and forecast strong shaking across much of the country, triggering alarms on mobile phones and street systems. The weather agency withdrew the erroneous warning minutes later and apologized for the disruption to transport. An actual earthquake of magnitude 7 struck Russia's Kamchatka Peninsula around the same time, though authorities confirmed no tsunami threat to Hawaii.

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  • ✓ Japan's Meteorological Agency mistakenly issued an early warning estimating a magnitude 9.9 earthquake and forecasting strong shaking across much of the country.
  • ✓ The actual earthquake measured magnitude 6.9 near Russia's Kamchatka Peninsula, while another source noted a magnitude 7 quake in the same region.
  • ✓ The alert was issued at approximately 12:36 p.m. Friday in Japan and canceled at 12:48 p.m.
  • ✓ The weather agency withdrew the erroneous alert minutes after issuing it and apologized for the warning that disrupted transport.
🛡️ Source Corroboration: 16 independent reporting domains (100% confidence) ⏱ Read time: ~2 min

What changed

The Japan Meteorological Agency withdrew its erroneous magnitude 9.9 earthquake warning and apologized for the disruption minutes after broadcast.

Live updates

  1. Japan Issues False Magnitude 9.9 Earthquake Warning

    Japan issued a false emergency alert for a magnitude 9.9 earthquake, startling the nation during the busy lunch hour. The Japan Meteorological Agency mistakenly estimated the massive magnitude and forecast strong shaking across much of the country, triggering alarms on mobile phones and street systems. The weather agency withdrew the erroneous warning minutes later and apologized for the disruption to transport. An actual earthquake of magnitude 7 struck Russia's Kamchatka Peninsula around the same time, though authorities confirmed no tsunami threat to Hawaii.

    Why it matters

    The erroneous alert triggered widespread alarm across Japan and disrupted transportation networks during peak hours. Witnesses compared the sudden panic to historical false alarms, such as the missile alert in Hawaii nearly a decade ago. The Japan Meteorological Agency quickly canceled the early warning in many areas after realizing the drastic overestimation.

    What is confirmed

    • Japan's Meteorological Agency mistakenly issued an early warning estimating a magnitude 9.9 earthquake and forecasting strong shaking across much of the country.
    • The actual earthquake measured magnitude 6.9 near Russia's Kamchatka Peninsula, while another source noted a magnitude 7 quake in the same region.
    • The alert was issued at approximately 12:36 p.m. Friday in Japan and canceled at 12:48 p.m.
    • The weather agency withdrew the erroneous alert minutes after issuing it and apologized for the warning that disrupted transport.

    What to watch next

    • Official investigation reports from the Japan Meteorological Agency detailing the cause of the estimation error
    • Updates on transport network operations following the brief disruption
    Sources used for this update (15)
    1. economictimes.indiatimes.com — Business News Live, Share Market News - Read Latest Finance News, IPO ...
    2. www.nytimes.com — The New York Times - Breaking News, US News, World News and Videos
    3. help.naver.com — Futures Flat As Oil Rebounds After Trump's "Energy Ceasefire" Unravels, Memory Stocks Slide | ZeroHedge
    4. Reuters — Earthquake of magnitude 7 strikes Russia's Kamchatka Peninsula, EMSC says
    5. The Japan Times — Emergency alert for strong quake withdrawn minutes later
    6. Honolulu Star-Advertiser — No tsunami threat to Hawaii after large quake hits Russia
    7. The Japan News — Japan Meteorological Agency Cancels Earthquake Early Warning in Many Areas (UPDATE 1)
    8. BNO News — Japan mistakenly issues warning for magnitude 9.9 earthquake
    9. Bloomberg — Japan’s Weather Agency Sends False Quake Alert, Startling Nation
    10. The New York Times — Japan Mistakenly Issues Warning for Strongest Ever Earthquake
    11. bnonews.com — Japan mistakenly issues warning for magnitude 9.9 earthquake - BNO News
    12. www.hawaiinewsnow.com — Japan mistakenly sends emergency alert warning of 9.9 magnitude earthquake | Hawaii News Now
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