摘要
鲁32井水位原始曲线难以判定地震前该井含水层系统的应力状态是否发生变化,采用类似Nakai拟合模型,计算水位观测数据体应变固体潮响应振幅因子比,结果表明,胶东半岛及海域发生的ML≥3.9地震前均出现高值异常。与地震活动参数对比分析,发现鲁32井200 km范围内ML≥3.9地震前,水温观测数据动态变化幅度及频度明显较高。
It is difficult to determine the well aquifer system stress state changes using the original curve of water level recorded before earthquakes at Lu No.32 well.We adopted fitting model similar to the Nakai to calculate loading and unloading response ratio（LURR） of water level.The results show that,LURR increases anomalously before ML≥ 3.9 earthquake in Jiaodong Peninsula.Though the comparative analysis of Lu No.32 well water temperature and seismic activity parameter,It is found that,within a range of 200 km of ML≥ 3.9 earthquake,the magnitude and frequency of changes in water temperature before the earthquake is significantly higher.
出处
《地震地磁观测与研究》
2016年第3期49-54,共6页
Seismological and Geomagnetic Observation and Research
基金
山东省自然基金项目(ZR2012DQ006)
山东省合同制项目(15Y109)联合资助
关键词
鲁32井
振幅因子比
地下流体
水温异常
Lu No
32 well
1oading/unloading response ratio
underground fluid
water temperature anomaly
