Condiciones geodinámicas derivadas del terremoto y tsunami de 2010 en la costa de Chile central: El caso de Pichilemu

Authors

  • María-Victoria Soto Universidad de Chile
  • Joselyn Arriagada Universidad de Chile
  • Carmen Paz Castro-Correa Universidad de Chile
  • Ignacio Ibarra Universidad de Chile
  • Giuliano Rodolf Universidad de Florencia (Italia)

DOI:

https://doi.org/10.4067/S0718-34022015000100005

Keywords:

Headland bay beach, tsunami, micro dune, beach changes

Abstract

The earthquake and tsunami of 2010, triggered changes in the geomorphological and sedimentary dynamics along the coast of Pichilemu, in central Chile. These changes were evidenced through the retreat and erosion of sandy beaches and coastal sand dunes. Modification patterns were identified through analysis of satellite images prior to and after the earthquake/tsunami, and compared with records from geomorphological fieldwork carried out in 2004 that measured essential features of representative beach profiles in the headland bay beaches. The variability of beaches dominated by waves was analyzed. The results indicate that there is coastal erosion and a change in the sedimentary balance associated with the subsidence of the coast, and that four years after the earthquake/tsunami, after the erosive phase, a change in tendency towards progradation of sandy coastlines in the headland bay beaches can be observed

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Author Biographies

María-Victoria Soto, Universidad de Chile

Departamento de Geografía, Universidad de Chile 

 

 

Joselyn Arriagada , Universidad de Chile

Departamento de Geografía, Universidad de Chile 

 

 

Carmen Paz Castro-Correa, Universidad de Chile

Departamento de Geografía, Universidad de Chile 

 

Ignacio Ibarra , Universidad de Chile

Departamento de Geografía, Universidad de Chile 

 

Giuliano Rodolf, Universidad de Florencia (Italia)

Universidad de Florencia (Italia) 

Published

2015-05-27

How to Cite

Soto, M.-V. ., Arriagada , J., Castro-Correa, C. P. ., Ibarra , I. ., & Rodolf, G. . (2015). Condiciones geodinámicas derivadas del terremoto y tsunami de 2010 en la costa de Chile central: El caso de Pichilemu. Revista De Geografía Norte Grande, (60), 79–95. https://doi.org/10.4067/S0718-34022015000100005

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Artículos