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早在2001年,中国地震局地球物理研究员陈学忠就曾著文论述《四川地区7级以上地震危险性分析》,正如李四光在1967年就对唐山大地震作过早期预报一样。
As early as 2001, Chen Xuezhong, a geophysical researcher at China Seismological Bureau, once wrote the article “Analysis of Seismic Hazard in Level 7 or above in Sichuan Province” just as Li Siguang had predicted early Tangshan earthquake in 1967.