【摘要】 矿山地震是矿山开采诱发的一种地震活动,为矿山开采的伴生动力地质现象之一。抚顺煤田矿震事件频繁发生,1968年12月开始对矿震作监测记录,截止2002年12月31日,共记录到ML>0级的矿震81522次。其中ML>3.0级64次,最大震级为ML3.7级。研究预测,抚顺煤田矿震的最大震级可能达到ML3.9~4.2级。当发生ML4.2级极值矿震时,极震区的烈度将超过Ⅶ度。文章依据以往矿震调查资料及地震烈度衰减理论,推导出抚顺煤田矿震烈度衰减模型,用该模型预测了极值矿震事件发生时的影响范围。有望为矿山及矿山城市减灾防灾决策提供参考。更多还原

【Abstract】 Coalfield earthquake is a kind of seismic activities caused by mining.There are a lot of earthquakes in the coalfield of Fushun,the number of coalfield earthquakes(M-L>0) between Dec.1968 and Dec.31,2002 was 81522,64 of them with M-L>3.0,the maximum M-L value is 3.7.The predicted M-L of coalfield earthquake may be 3.9-4.2. The intensity of M-L 4.2 earthquake will be Ⅶ.Based on the survey data and the method of earthquake intensity damping,we deduced the attenuation model of coalfield earthquake intensity,and predicted the influencing scope.更多还原