Tsunami record on arid coasts: 100 years of the 1922 Atacama tsunami in northern Chile

Authors

  • Manuel Abad de los Santos Departamento de Biología y Geología, Física y Química Inorgánica, Universidad Rey Juan Carlos, Mostoles, Madrid. https://orcid.org/0000-0003-1930-2650
  • Tatiana Izquierdo Labraca Departamento de Biología y Geología, Física y Química Inorgánica, Universidad Rey Juan Carlos, Móstoles, Madrid. https://orcid.org/0000-0002-3805-2020
  • Maximiliano Forch Departamento de Geología, Universidad de Chile
  • Perla Cortés Grupo de investigación en Dinámica de la Tierra y Evolución del Paisaje de la Universidad Rey Juan Carlos (DYNAMICAL), Móstoles, Madrid.
  • Gabriel Easton Departamento de Geología, Universidad de Chile.
  • José González-Alfaro Departamento de Geología, Universidad de Chile.
  • Ana Alvarado-Justo Grupo de investigación en Dinámica de la Tierra y Evolución del Paisaje de la Universidad Rey Juan Carlos (DYNAMICAL), Móstoles, Madrid.
  • Francisco Ruiz Departamento de Ciencias de la Tierra, Universidad de Huelva.

DOI:

https://doi.org/10.55407/geogaceta98277

Keywords:

1922 tsunami, arid coasts, geological record, Atacama, Chile

Abstract

The Atacama earthquake of November 11, 1922 (Mw 8.5 – 8.6) is the second largest earthquake in Chile in the 20th century. In this paper we review the deposits associated with this tsunamigenic event and present new evidence of its record on the coast of the Atacama Desert. Its geological evidence appears punctually and heterogeneously due to the scarcity of environmental contexts suitable for its preservation on the coast, highlighting the good potential for preservation of boulder fields in cliff areas. It is likely that large tsunamigenic events that have taken place during the Present Interglacial on arid coasts, such as that of the Atacama Desert, have gone unnoticed to date by the scientific community, being necessary multidisciplinary studies and focused on very specific scenarios for their correct identification and analysis.

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Panorámica de Los Pirineos (foto portada)

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Published

2023-12-18

How to Cite

Abad de los Santos, M., Izquierdo Labraca, T., Forch, M., Cortés, P., Easton, G., González-Alfaro, J., Alvarado-Justo, A., & Ruiz, F. (2023). Tsunami record on arid coasts: 100 years of the 1922 Atacama tsunami in northern Chile. GEOGACETA, 74, 47–50. https://doi.org/10.55407/geogaceta98277

Issue

Vol. 74 (2023): July-December

Section

Artículos

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Copyright (c) 2023 Manuel Abad de los Santos, Tatiana Izquierdo Labraca, Maximiliano Forch, Perla Cortés, Gabriel Easton, José González-Alfaro, Ana Alvarado-Justo, Francisco Ruiz

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