【摘要】 通过查阅、分析历史文献资料及对同一地方震级相近的不同历史地震破坏情况对比,结合破坏范围认为各版《中国地震目录》71/4对1917年7月31日云南大关吉利铺地震震级的估定可能偏低,修正到714级更为准确,与仪器记录的主体数据吻合,符合震灾实况,能更好地解释震级来源的依据所在。其结果对于合理地估计大关-永善-雷波-马边地震活动带的地震危险度有重要意义。更多还原

【Abstract】 Through consulting and analyzing historical documents and materials,comparing the destructive situations in different historical earthquakes with similar magnitudes at same place,considering the wider destruction range,we think that the magnitude assessment for Daguan Jilipu earthquake on July 31,1917 in Yunnan province in each versions of 《China earthquake catalogue》 may be on the low side,and magnitude=71/4 is more appropriate,which tallies with the main data recorded by instruments,conforms to the rear situation of earthquake disaster,can explain the basis of earthquake magnitude source better.New magnitude is of important significance to the reasonable estimation of seismic risk degree of Daguan-Yongshan-Leibo-Mabian seismic belt.更多还原