2 a.m. alarm that woke Tokyo before a 5.9 earthquake even struck

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Japan’s earthquake alert gives Tokyo residents precious seconds before violent shaking

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On August 23, 2026, millions of Tokyo residents got jerked awake at 2:00 a.m. by super loud smartphone alerts. Just seconds before the violent shaking started, Japan’s automated defense network seemed to hand over a head start, like some extra breathing space against nature’s raw force.