pure and applied geophysics

, Volume 92, Issue 1, pp 26–35 | Cite as

Spectra of seismic waves of Matsushiro micro-earthquakes

  • H. N. Srivastava
  • J. Drakopoulos
  • T. Terashima
Article
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Summary

The spectra of Matsushiro micro-earthquakes were studied using a spectrum analyser and discussed in relation to their magnitude and the epicentral distance. It was found that the spectra of seismic waves by Matsushiro micro-earthquakes did not depend upon the epicentral distance since the sonagrams showed a peak around 5 cps at Matsushiro as well as Suzaka. The spectrum also failed to show any distinct peak for micro-earthquakes of magnitude lower than 1.0 due to the decrease of signal to noise ratio.

Keywords

Seismic Wave Distinct Peak Epicentral Distance Spectrum Analyser 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.
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Copyright information

© Birkhäuser Verlag 1971

Authors and Affiliations

  • H. N. Srivastava
    • 1
  • J. Drakopoulos
  • T. Terashima
    • 2
  1. 1.Meteorological OfficeNew Delhi-3India
  2. 2.Seismological ObservatoryAthens UniversityAthensGreece

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