• DocumentCode
    2038593
  • Title

    Searching algorithm for hypocenter location in convex polygon boundaries

  • Author

    Thirachai, S. ; Suwatthikul, J. ; Sornmuang, S.

  • Author_Institution
    Ind. Control & Autom. Lab. (ICA), Nat. Electron. & Comput. Technol. Center (NECTEC), Pathumthani, Thailand
  • fYear
    2011
  • fDate
    13-18 Sept. 2011
  • Firstpage
    2643
  • Lastpage
    2647
  • Abstract
    In an earthquake monitoring system, seismic waves are analyzed by experts or computer software to determine a magnitude and to locate the hypocenter of the earthquake. A common method for locating the hypocenter is the optimization of the least square error approach, LSE, where at least three distance values gathered from three or more different monitoring stations are required. This paper presents an approach to locating a hypocenter by employing convex polygon boundaries when computing the location. The boundaries defined by multiple planes avoid computational iterations leaving the polygon where the hypocenter is expected. The LSE approach is then applied for the calculation. Simulation results show that when using this approach the hypocenter can be identified more efficiently.
  • Keywords
    earthquakes; geophysical techniques; geophysics computing; iterative methods; least squares approximations; optimisation; search problems; seismic waves; LSE; computational iteration; computer software; convex polygon boundary; earthquake monitoring system; hypocenter location; least square error optimization; monitoring station; multiple plane; searching algorithm; seismic wave; Cost function; Earthquakes; Estimation; Iterative methods; Monitoring; Optimization methods; Epicenter; Hypocenter Location;
  • fLanguage
    English
  • Publisher
    ieee
  • Conference_Titel
    SICE Annual Conference (SICE), 2011 Proceedings of
  • Conference_Location
    Tokyo
  • ISSN
    pending
  • Print_ISBN
    978-1-4577-0714-8
  • Type

    conf

  • Filename
    6060426