摘要
通过对1981～1988年这一时期内五大连池火山区的地震和人工爆破记录的分析和整理,讨论了本区的岩浆侵入活动,总结了本区的地震活动特征,并对本区内地震活动成因机制进行了初步的探讨。结果表明:五大连池火山活动与地震活动存在着密切的联系,它们有着共同的成因机制即本区的岩浆侵入活动,火山区地震活动的不同特征反映着火山的活动性。火山区的小震及微震是由于岩浆侵入时期岩浆充填地下微裂隙和岩浆回落时期穹窿塌陷所致;火山区外围的中强地震是由于岩浆侵入活动诱发了讷木尔河深大断裂所致。
Records of earthquakes and explosion earthquakes in Wudalianchi volcanic region during 1981—1988 have been analysed and sorted out. The authors dliscuss magma intrusion activity in the volcanic region, summarize seismicity characteristics in the area, and make research on seismicity origin. The results show that there exists close, relation between volcanic activity and seismicity in Wudalianchi region, The cause of occurence is same, that is magma intrusion activity.
出处
《防灾减灾学报》
1993年第1期53-62,共10页
Journal of Disaster Prevention And Reduction
