Tomografía 3D de Costa Rica a partir de ruido sísmico

  1. Núñez Alpízar, Evelyn
Supervised by:
  1. Daniel Stich Director
  2. Martin Schimmel Director

Defence university: Universidad de Granada

Fecha de defensa: 25 May 2020

Committee:
  1. Jean P. Metaxian Chair
  2. Inmaculada Serrano Bermejo Secretary
  3. Antonio García Jerez Committee member
  4. Francisco Javier Almendros González Committee member
  5. Beatriz Gaite Castrillo Committee member
Department:
  1. FÍSICA TEÓRICA Y DEL COSMOS

Type: Thesis

Teseo: 611653 DIALNET lock_openDIGIBUG editor

Abstract

In this thesis we present a 3D shear-wave velocities model for the upper crust of Costa Rica obtained from surface (Rayleigh) waves. Rayleigh waves were extracted from empirical Green functions estimated from ambient noise cross correlation. We compute the daily cross correlations between a total of 56 broadband seismic stations across all Costa Rica for the period from 2010 to 2015. To compute the cross correlations for this work, we used the classical cross correlation (CCC). The results from the 2D group velocities tomography for the Turrialba volcano obtained from ambient noise for 2016 are also presented, however for this study the daily cross correlations of the 21 broadband seismic stations were calculated using the PCC (Phase Cross Correlation).