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Tangshan, six years later

U.S. Geological Survey

Where this source supports the record

Each entry separates the article’s editorial relevance note from its exact, section-level claims. A bibliography link without a direct claim is labeled plainly.

  1. Natural disasters · 28 July 1976

    Tangshan Earthquake

    Central Tangshan disaster area · China

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    Why editors use it here

    Contemporary scientific reassessment of the earthquake's timing, magnitude, intensity, disputed casualties, destruction, and recovery.

    1. Quick read

      At 3:42 a.m.

      Reviewed 5 August 2026
    2. Trigger and conditions

      A shallow fault rupture began beneath or near the urban region at 3:42 a.m.

      Reviewed 5 August 2026
    3. Uncertainty

      Magnitude estimates vary by scale and agency, commonly appearing between 7.5 and 7.8.

      Reviewed 5 August 2026
    4. Why it matters

      Tangshan is one of the deadliest documented earthquakes and a stark example of how time of day, building vulnerability, urban concentration, and broken access multiply seismic loss.

      Reviewed 5 August 2026