REDUCIBLE SEISMIC INTENSITY IN THE LANZHOU AREA DUE TO THE 1920 HAIYUAN M8.5 EARTHQUAKE
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    Abstract:

    Effective distance to reduce seismic intensity on two sides of the main fault causing the 1920 Haiyuan M8.5 earthquake is about 160 km.Within the distance no M>6.5 earthquake will occur during the future several hundreds of years.Because Lanzhou City is 120 km away from the main fault, in the city no M>6.5 earthquake will occur in a few hundreds of years.Structures and buildings in Lanzhou City were designed according to antiseismic standard of Ⅷ degree on the intensity scale.Even though a M6.5 earthquake will occur in future,its destruction would not be too heavy.It is a consideration in the worst case.

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History
  • Received:January 15,1997
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  • Adopted:
  • Online: June 24,2017
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