Citation

Li X, Zhang X, Guo B. Sensors (Basel) 2013; 13(11): 14261-14276.

Affiliation

School of Geodesy and Geomatics, Wuhan University, 129 Luoyu Road, Wuhan, Hubei 430079, China. xhzhang@sgg.whu.edu.cn.

Copyright

(Copyright © 2013, MDPI: Multidisciplinary Digital Publishing Institute)

DOI

10.3390/s131114261

PMID

24284765

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.

Language: en