南昌井水位对远震的同震响应分析
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摘要
通过对2001—2008年间139次震例数字化资料的总结,定性分析了南昌井水位资料对强远震的响应情况,并采用二阶回归方法对模型进行优化和定量分析。研究认为:南昌井水位资料对强远震响应较好,同震响应幅度与震级、震中距综合相关,响应距离随震级增加而增加,但在各震级档中均存在距离上限。
The coseismic response characteristics of the Nanchang well water level to teleseismic has been analysis bysummarizing digital data of 139 earthquakes from 2001 to 2008. The two order regression method has also been usedto optimize and analyze the model. The results show that the Nanchang well water level has better response to strongteleseismic and the amplitude of the coseismic response is closely related to earthquake magnitude and epicentraldistance. The response distance increases with the increase of magnitude, but there is an upper limit of epicentraldistance for each magnitude level.
The coseismic response characteristics of the Nanchang well water level to teleseismic has been analysis bysummarizing digital data of 139 earthquakes from 2001 to 2008. The two order regression method has also been usedto optimize and analyze the model. The results show that the Nanchang well water level has better response to strongteleseismic and the amplitude of the coseismic response is closely related to earthquake magnitude and epicentraldistance. The response distance increases with the increase of magnitude, but there is an upper limit of epicentraldistance for each magnitude level.
引文
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[3]付虹,刘丽芳,王世芹,等.地方震及近震地下水同震震后效应研究[J].地震,2002,22(4):56-66
[4]杨竹转,邓志辉,赵云旭,等.云南思茅大寨井水位同震阶变的初步研究[J].地震学报,2005,27(5):569-574
[5]Roeloffs E A.Persistent water level changes in a well near Parkfield California。due to local and distant earth quakes[J].J Geophys Res,1998,103(B1):869-889
[6]周松源,张介辉,徐克定,等.从南昌凹陷构造演化分析赣江断裂带运动学特征[J].地质力学学报,2005,11(3):266-272
[7]吴敏,赵爱平.南昌地震台数字水位与模拟水位观测对比研究[J].华南地震,2002,22(4):70-73
[8]杨雪超,赵爱平,操红.南昌台气氡异常核实[J].防灾科技学院学报,2007,9(3):43-47
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