Group Velocity Dispersion Analysis of Meiktila Myanmar Earthquake for Studying the Crustal Thickness

DOI: 10.5176/2251-3361_GEOS12.17

Authors: Md. Omar Faruk, Syed Mustafizur Rahman, Md. Abul Hashem,Mumnunul Keramat, Noushin Naraghi Araghi and Mohd Nawawi Mohd Nordin

Abstract: Graphical method has used to compute the group velocity dispersion for Meiktila earthquake of magnitude 6.6 on 21 September 2003 of 18:16:13 UTC time. A model taking subsurface layer parameters is constructed to compute the group velocity dispersion by modified Haskell matrix method. Group velocity dispersion by graphical method is then interpreted from model parameters. Sensitivity and the statistical errors of the model are studied and presented in this research. Interpreted crustal structure of the Meiktila area has been estimated as there are four major subsurface layers of thicknesses 1.5 km, 3.5 km, 3.0 km and 3.0 km.
Keywords: model; parameters; crust; thickness; period; group-velocity; synthetic; earthquake-data; seismic-wave.