摘要
甘肃高台基准台钻孔分量应变仪运行稳定,资料连续可靠。发现在部分大震前有形态各异的前驱波存在,其表现方式有突升、突降、固体潮畸变和地脉动加粗等。介绍了部分震例,并对其成因进行了初步的讨论。
The observation data of 4-component borehole strainmeter at Gaotai base seismic station, Gansu province, have been stable, continuous and reliable since it was set up in 2007. It is found that different types of the precursory waves appeared before some strong earthquakes, such as sudden rise, sudden plunge, tidal distortion and microtremor bold, etc. In this paper the precursory waves before some strong events are introduced, and the mechanism of the wave is discussed also.
出处
《西北地震学报》
CSCD
北大核心
2012年第3期299-307,共9页
Northwestern Seismological Journal
基金
中国地震局三结合基金项目(2011202)
关键词
钻孔应变仪
分量应变
前驱波
大震
Borehole strainmeter
Component of strain
Precursory wave
Strong earthquake
