这份报告总结了过去三年中地震学的进展。在这一时期发生了两种不同类型的地震,它们都具有特别的意义。第一类地震包括发生在俯冲板块边界上地震空区中的较大地震和大地震。1985年3月3日智利瓦尔帕莱索地震(M_S=7.8,M_W=8.0)发生在有充分资料证明其大震周期为86±10年的地区。这个地区的上一次大地震发生在1906年。1985年9月19日墨西哥地震(M_S=8.1) This report summarizes the progress of seismology over the past three years. Two different types of earthquakes occurred during this period, all of which are of special significance. The first type of earthquakes includes larger earthquakes and large earthquakes that occur in the seismic zone above the boundary of the subducting plate. March 3, 1985 The Valparaiso Earthquake in Chile (M_S = 7.8, M_W = 8.0) occurred in areas well documented for a period of 86 ± 10 years. The last major earthquake in the area occurred in 1906. Mexico earthquake on September 19, 1985 (M_S = 8.1)