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Application of Collocated GPS and Seismic Sensors to Earthquake Monitoring and Early Warning
School of Geodesy and Geomatics, Wuhan University, 129 Luoyu Road, Wuhan, Hubei 430079, China
German Research Centre for Geosciences (GFZ), Telegrafenberg, Potsdam 14473, Germany
* Author to whom correspondence should be addressed.
Received: 14 August 2013; in revised form: 14 October 2013 / Accepted: 17 October 2013 / Published: 24 October 2013
Abstract: We explore the use of collocated GPS and seismic sensors for earthquake monitoring and early warning. The GPS and seismic data collected during the 2011 Tohoku-Oki (Japan) and the 2010 El Mayor-Cucapah (Mexico) earthquakes are analyzed by using a tightly-coupled integration. The performance of the integrated results is validated by both time and frequency domain analysis. We detect the P-wave arrival and observe small-scale features of the movement from the integrated results and locate the epicenter. Meanwhile, permanent offsets are extracted from the integrated displacements highly accurately and used for reliable fault slip inversion and magnitude estimation.
Keywords: real-time high-rate GPS; seismic sensor; integrated displacements; earthquake monitoring; earthquake early warning
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MDPI and ACS Style
Li, X.; Zhang, X.; Guo, B. Application of Collocated GPS and Seismic Sensors to Earthquake Monitoring and Early Warning. Sensors 2013, 13, 14261-14276.
Li X, Zhang X, Guo B. Application of Collocated GPS and Seismic Sensors to Earthquake Monitoring and Early Warning. Sensors. 2013; 13(11):14261-14276.
Li, Xingxing; Zhang, Xiaohong; Guo, Bofeng. 2013. "Application of Collocated GPS and Seismic Sensors to Earthquake Monitoring and Early Warning." Sensors 13, no. 11: 14261-14276.