International Journal of
Physical Sciences

  • Abbreviation: Int. J. Phys. Sci.
  • Language: English
  • ISSN: 1992-1950
  • DOI: 10.5897/IJPS
  • Start Year: 2006
  • Published Articles: 2516

Full Length Research Paper

A preliminary investigation of the signal-to-noise ratio of Toro and Nsukka stations in Nigeria

Kadiri Umar Afegbua1* and F. O. Ezomo2
1Department of Earthquake Seismology, Centre for Geodesy and Geodynamics, P. M. B. 11, Toro, Bauchi State, Nigeria. 2Department of Physics, Faculty of Physical Sciences, University of Benin Ugbowo, Benin City, Edo State, Nigeria.
Email: [email protected]

  •  Accepted: 08 March 2013
  •  Published: 30 April 2013


Preliminary investigation of Toro and Nsukka stations from the Nigerian National Network of Seismographic Stations (NNNSS) with respect to Signal-to-Noise-Ratios (SNR) has been performed from noise observation and numerically. The results showed that Toro has higher SNR compared to Nsukka. Six months data collected from the stations in 2012 were used for the study. Nsukka Station in the southern part of Nigeria exhibited high noise than its Toro counterpart that is located in the North. This study is intended to investigate the causes of differing SNR at  as observed at Toro and Nsukka stations respectively, with a view to adopting measures to forestalling SNR compromise at future stations in Nigeria. 


Key words: Seismic noise, Nigerian national network of seismographic stations (NNNSS), signal-to-noise-ratio, measures for signal-to-noise-ratios (SNR) improvement.