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地震 ›› 2003, Vol. 23 ›› Issue (4): 85-90.

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井水位长周期事件记录及其机理的讨论

张淑亮, 范雪芳   

  1. 山西省地震局, 山西太原 030002
  • 收稿日期:2002-10-16 修回日期:2003-01-12 出版日期:2003-10-31 发布日期:2021-12-21
  • 作者简介:张淑亮(1963-), 女, 山西芮城人, 高级工程师, 主要从事地下流体等研究。

Well-water level records of long period events and its mechanism

ZNANG Shu-liang, FAN Xue-fang   

  1. Seismological Bureau of Shanxi Province, Taiyuan 030002, China
  • Received:2002-10-16 Revised:2003-01-12 Online:2003-10-31 Published:2021-12-21

摘要: 选择了几口具有代表性的观测井, 并对这些井孔在强震前记录到长周期波现象的特征进行了分析。从理论上对地震前的长周期事件给出了较为合理的解释, 认为地震前一些敏感井水位长周期事件可能反映了断层蠕动、静地震与慢地震、断裂的预扩展和地震成核等。井— 含水层系统像一个长周期地震仪, 它为记录到有价值的前兆低频波提供了最佳的频率响应范围。

关键词: 井水位, 长周期地震波, 震源成核, 机理讨论

Abstract: The characteristics of long period w aves, reco rded at several representative wells before large earthquakes, are analy zed.The reasonable explanation on these long period events occurred before earthquakes is given in theory.It is thought that the long period w ater level events, occurred at some sensitive wells before earthquakes, may be related to the process such as fault creeping, silent and slow earthquake, fault pre-ex tending and seismic source nucleation.The system consisting of well and w ater layers behaves like a long period seismograph. The system responds very well to the valuable precursor low frequency w aves.

Key words: Water level of well, Long period seismic wave, Seismic source nucleation, Mechanism Discussion

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