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The 1976 Tangshan earthquake was a 7.6 earthquake that hit the region around Tangshan, Hebei, China, at 19:42:55 UTC on 27 July (03:42:55, 28 July local time). The maximum intensity of the earthquake was XI (Extreme) on the Mercalli scale. In minutes, 85 percent of the buildings in Tangshan collapsed or were rendered unusable, all services failed, and most of the highway and railway bridges collapsed

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