Non-linear optimization methods for small earthquake locations

• Autorzy: Pszczoła G. , Leśniak A.
• Języki publikacji: EN

Abstrakty

EN

The problem of locating mine tremors using P-wave arrival times is revisited in the paper. A multidimensional, global, non-linear, constrained optimization method is used as a minimization algorithm for tremor location.In order to see the general properties of the minimized function a few images showing its basins of attractions have been constructed. These pictures enable us to choose efficient algorithms needed to solve location problems. The classical genetic algorithm, pure random search and the most efficient multistart algorithm have been tested. Local minimization methods should be introduced to the location procedure to increase the efficiency of tremor location.

Słowa kluczowe

EN

global optimization; basin of attraction; earthquake location

• Wydawca: Politechnika Gdańska
• Czasopismo: TASK Quarterly : scientific bulletin of Academic Computer Centre in Gdansk
• Rocznik: 2004
• Tom: Vol. 8, No 4
• Strony: 583--590
• Opis fizyczny: Bibliogr. 5 poz., rys., tab.

Twórcy

autor

Pszczoła G.

• Department of Geoscience Informatics, Faculty of Geology, Geophysics and Environmental Protection, AGH University of Science and Technology, al. Mickiewicza 30, 30-059 Cracow, Poland

autor

Leśniak A.

• Department of Geoscience Informatics, Faculty of Geology, Geophysics and Environmental Protection, AGH University of Science and Technology, al. Mickiewicza 30, 30-059 Cracow, Poland

Bibliografia

• [1] Kowalik S 2000 Acta Geophys. Polon. 48 (1) 27
• [2] Shearer P M 1999 Introduction to Seismology, Cambridge University Press, USA
• [3] Menke W 1984 Geophysical Data Analysis: Discrete Inverse Theory, Oregon State University, Corvallis, USA
• [4] Press W H, Flannery B P, Teukolsky S A and Vetterling W T 1986 Numerical Recipes in C. The Art of Scientific Computing, Cambridge University Press, USA
• [5] Sambridge M and Gallagher K 1993 Bull. Seism. Soc. America 83 (5) 1467