【摘要】 本文讨论了海城地震的一系列地震学研究问题。这些研究的一个共同宗旨是,试图寻求某种地震学方面的前兆特征,以便能够准确地预报地震。虽然我们找到了一些有意义的特征,但离最终目的还差得很远。更多还原

【Abstract】 In this paper, a series of seismological problems relating to the 1975 Haicheng Earthquake, Liaoning Province are discussed. The chief purpose of this study is aimed to find some seismological criterion for earthquake precursors. Although we have found some possible indications, yet they are still very far from our eventual purpose.更多还原