Distribution of seismic noise sources and an application to geophysics

Authors

  • Jovan Ezequiel Basaldúa-Sánchez Universidad Autónoma de Querétaro
  • Norberto Flores-Guzmán Centro de Investigación en Matemáticas, A.C.
  • Rafael Ávila-Carrera Instituto Mexicano del Petróleo
  • Alejandro Rodríguez-Castellanos Universidad Politécnica del Valle de México

DOI:

https://doi.org/10.33064/iycuaa2019761788

Keywords:

P and SV waves, Greens function, energy distributions, seismic sources, displacement fields

Abstract

By correlating the seismic noise, it is possible to recover one of the most important characteristics of the structure of the medium where seismic waves propagate, such characteristic is known as the Green´s function. However, it's necessary to study the influence of the seismic noise distribution in order to estimate whether the recovered Green´s function will be accurate. This work shows a formulation that allows obtaining the Green function for different distributions of seismic noise sources. First, the exact Green functions are used, and the energy contents of the P and SV waves are studied. Afterwards, the relationship of the exact Green function and that recovered by seismic noise is shown. Subsequently, several seismic source distributions are analyzed, mainly isotropic and collinear, and some elements that allow us to assess which of them can lead to obtain the Green´s function with good approximation are exposed.

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Author Biographies

Jovan Ezequiel Basaldúa-Sánchez, Universidad Autónoma de Querétaro

Facultad de Ingeniería, División de investigación y Posgrado, Universidad Autónoma de Querétaro. Cerro de las Campanas s/n, Las Campanas, C. P. 76010, Santiago de Querétaro, Querétaro, México

Norberto Flores-Guzmán, Centro de Investigación en Matemáticas, A.C.

Centro de Investigación en Matemáticas, A.C. Callejón Jalisco s/n, Mineral de Valenciana, C. P. 36023, Guanajuato, Guanajuato, México.

Rafael Ávila-Carrera, Instituto Mexicano del Petróleo

Instituto Mexicano del Petróleo. Eje Central Lázaro Cárdenas 152, Gustavo A. Madero, C. P. 07730, Ciudad de México, México.

Alejandro Rodríguez-Castellanos, Universidad Politécnica del Valle de México

Universidad Politécnica del Valle de México. Av Mexiquense s/n, esq. Av. Universidad Politécnica, Villa Esmeralda, C. P. 54910, Estado de México, México.

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Published

2019-01-31

Issue

No. 76 (2019)

Section

Artículos de Investigación

Categories

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Las obras publicadas en versión electrónica de la revista están bajo la licencia Creative Commons Atribución-NoComercial-CompartirIgual 4.0 Internacional (CC BY-NC-SA 4.0)