1920年海原8.5级地震发生日期的异年倍九律现象

Discussion on the Occurrence Date of the 1920 MS8.5 Haiyuan Earthquake Using the Rhythm of Multiplied Nine Days in Different Years Method

异年倍九法是我们提出的一个临震预报的方法,带有明确有计数到天的指征特点,本文用此方法回溯讨论了讨论1920年海原8.5级大震的发震日期。以作为今后在甘宁地区在冬季从短临时间尺度预测大震日期的参考。

The rhythm of multiplied nine days in different years is a method for predicting the occurrence of imminent earthquakes before they strike.It has the characteristic of counting to day clearly.In this paper,this method is used to discuss the occurrence date of the 1920 MS8.5 Haiyuan earthquake.The results of this study can be used as a reference to predict the date of large earthquakes in Gansu and Ningxia areas from short impending time scale.