Co-seismic signatures in magnetometer, geophone, and infrasound data during the Meinong Earthquake
Co-seismic signatures in magnetometer, geophone, and infrasound data during the Meinong Earthquake
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美浓地震期间磁力计、地震检波器和次声数据的同震特征
DOI：
10.3319/tao.2017.03.05.01
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发表时间：
2017
期刊：
影响因子：
--
通讯作者：
Liu Zhengyan
中科院分区：
文献类型：
--
作者：
Liu Jann Yenq;Chen Chieh Hung;Wu Tsung Yu;Chen Hsiao Ching;Hattori Katsumi;Yang I Ching;Bleier Tom;Kappler Karl;Xia Yaqin;Chen Weisheng;Liu Zhengyan
本文利用10个共置地震计、地震仪/次声观测2016年2月6日美浓6.6级地震触发的同震特征。每个QuakeFinder系统均由3轴感应磁力计、空气电导率传感器、地震检波器和温度/相对湿度传感器组成。在正/负离子、温度和湿度中没有明显的电荷，而磁力计、地震检波器和次声数据检测到清晰的同震特征，类似于地震仪记录的地震波。磁力计记录高频脉动，如地震波，并记录低频变化，这可能分别由地震波到达时磁力计的震动/倾斜和/或地下水位变化引起。同震检波器波动的以2.0 Hz为中心的频谱与地震波的频谱相似。然而，同震检波器波动（也是磁力计脉动）的能量与台站到震中的距离成指数衰减，而地震波的能量与距离的平方成反比。这表明，检波器系统和地震仪探测地震波的机制是不同的。一般来说，地震检波器和磁力计/次声系统分别用于记录高频和低频地震波。文章历史：接收于2016年11月15日修订于2017年3月2日接受于2017年3月5日
This paper utilizes 10 stations of co-located seismometer, QuakeFinder/infrasound to observe co-seismic signatures triggered by the 6 February 2016 M 6.6 Meinong Earthquake. Each QuakeFinder system consists of a 3-axes induction magnetometer, an air conductivity sensor, a geophone, and temperature/relative humidity sensors. There are no obvious charges in the positive/negative ions, the temperature, and the humidity, while the magnetometer, the geophone, and infrasound data detect clear co-seismic signatures, similar to seismic waves recorded by seismometers. The magnetometers register high-frequency pulsations, like seismic waves, and superimpose with low-frequency variations, which could be caused by the magnetometer shaking/tilting and/or the underground water level change, respectively, upon the arrival of seismic waves. The spectrum centering around 2.0 Hz of the co-seismic geophone fluctuations is similar to that of the seismic waves. However, the energy of co-seismic geophone fluctuations (also magnetometer pulsations) yields an exponential decay to the distance of a station to the epicenter, while the energy of the seismic waves is inversely proportional to the square of the distance. This suggests that the mechanisms for detecting seismic waves of the QuakeFinder system and seismometers are different. In general, the geophone and magnetometer/infrasound system are useful to record highand low-frequency seismic waves, respectively. Article history: Received 15 November 2016 Revised 2 March 2017 Accepted 5 March 2017
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影响因子：
3.7
作者：
D. Widarto;T. Mogi;Yoshikazu Tanaka;T. Nagao;K. Hattori;S. Uyeda
通讯作者：
D. Widarto;T. Mogi;Yoshikazu Tanaka;T. Nagao;K. Hattori;S. Uyeda
影响因子：
2.8
作者：
H. Ren;Qinghua Huang;Xiaofei Chen
通讯作者：
H. Ren;Qinghua Huang;Xiaofei Chen
影响因子：
--
作者：
Jann‐Yenq Liu;Y. Tsai;Chieh‐Hung Chen;Yuh-Ing Chen;H. Yen
通讯作者：
Jann‐Yenq Liu;Y. Tsai;Chieh‐Hung Chen;Yuh-Ing Chen;H. Yen
影响因子：
4
作者：
Jann‐Yenq Liu;L. Chang;C. Chao;Ming-Quey Chen;Y. Chu;L. Hau;Chienwen Huang;C. Kuo;Lou‐Chuang Lee;L. Lyu;Chia-Hsien Lin;C. Pan;J. Shue;C. Su;L. Tsai;Ya-Hui Yang;Chien‐Hung Lin;R. Hsu;H. Su
通讯作者：
Jann‐Yenq Liu;L. Chang;C. Chao;Ming-Quey Chen;Y. Chu;L. Hau;Chienwen Huang;C. Kuo;Lou‐Chuang Lee;L. Lyu;Chia-Hsien Lin;C. Pan;J. Shue;C. Su;L. Tsai;Ya-Hui Yang;Chien‐Hung Lin;R. Hsu;H. Su
DOI：
10.1186/bf03352449
发表时间：
2002-12
期刊：
Earth, Planets and Space
影响因子：
--
作者：
Y. Honkura;M. Matsushima;N. Oshiman;M. K. Tunçer;Ş. Barış;A. Ito;Y. Iio;A. M. Işikara
通讯作者：
Y. Honkura;M. Matsushima;N. Oshiman;M. K. Tunçer;Ş. Barış;A. Ito;Y. Iio;A. M. Işikara