Calculation of Hypocentral Parameters using the Generalized Inversion Method
DOI:
https://doi.org/10.15381/rif.v20i1.14708Keywords:
seismology, epicenter, inversionAbstract
In this research a generalized inversion method was applied to obtain the epicenter of seismic events of local and regional origin from the readings of arrival time of P and S phases of at least 4 seismic stations. The initial condition of the model is obtained from the location of the seismic station closest to the epicenter, the initial origin time is obtained from the Wadati diagram and the initial depth is set up to 33 km for each case. We suppose a homogeneous velocity model of the P wave of 7.6 km/s (obtained from the inversion process). From the analysis of eigenvalues and eigenvectors of the system matrix (GTG), we deduce that the most stable parameter is the origin time and the most unstable parameter is the focal depth. The linearized model converges quickly to the solution.
Downloads
Published
Issue
Section
License
Copyright (c) 2017 César Jiménez, Daniel Olcese
This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.
THE AUTHORS RETAIN THEIR RIGHTS:
a. The authors retain their trademark and patent rights, as well as any process or procedure described in the article.
b. The authors retain the right to share, copy, distribute, perform and publicly communicate the article published in the Revista de Investigación de Física (for example, place it in an institutional repository or publish it in a book), with an acknowledgment of its initial publication in the Revista de Investigación de Física.
c. The authors retain the right to make a subsequent publication of their work, to use the article or any part of it (for example: a compilation of their works, notes for conferences, thesis, or for a book), provided that they indicate the source. of publication (authors of the work, journal, volume, number and date).
