Global variation of seismic energy release with oceanic lithosphere age

Abstract Variations in Mid Ocean Ridge seismicity with age provide a new tool to understand the thermal evolution of the oceanic lithosphere. The sum of seismic energy released by earthquakes during a time, and for an area, is proportional to its lithospheric age. Asthenospheric temperatures emerge...

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Autores principales:	Nicolás Pinzón, Carlos A. Vargas
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/cf6b7a441ec94f8ea673a2b9e2745e58
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spelling	oai:doaj.org-article:cf6b7a441ec94f8ea673a2b9e2745e582021-12-02T14:12:09ZGlobal variation of seismic energy release with oceanic lithosphere age10.1038/s41598-020-80475-y2045-2322https://doaj.org/article/cf6b7a441ec94f8ea673a2b9e2745e582021-01-01T00:00:00Zhttps://doi.org/10.1038/s41598-020-80475-yhttps://doaj.org/toc/2045-2322Abstract Variations in Mid Ocean Ridge seismicity with age provide a new tool to understand the thermal evolution of the oceanic lithosphere. The sum of seismic energy released by earthquakes during a time, and for an area, is proportional to its lithospheric age. Asthenospheric temperatures emerge on ridge centers with new crust resulting in high seismic activity; thus, the energy released sum is highest on the young lithosphere and decreases with age. We propose a general model that relates the systematic variation of seismic energy released with the lithospheric age. Our analysis evaluates the main physical factors involved in the changes of energy released sum with the oceanic lithosphere age in MOR systems of different spreading rates. These observations are substantiated based on three cross-sections of the East Pacific Rise, six sections in the Mid Atlantic Ridge, and three profiles in the Central Indian Ridge. Our global model provides an additional tool for understanding tectonic processes, including the effects of seismicity and mid-plate volcanism, and a better understanding of the thermal evolution for the young oceanic lithosphere.Nicolás PinzónCarlos A. VargasNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-9 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Nicolás Pinzón Carlos A. Vargas Global variation of seismic energy release with oceanic lithosphere age
description	Abstract Variations in Mid Ocean Ridge seismicity with age provide a new tool to understand the thermal evolution of the oceanic lithosphere. The sum of seismic energy released by earthquakes during a time, and for an area, is proportional to its lithospheric age. Asthenospheric temperatures emerge on ridge centers with new crust resulting in high seismic activity; thus, the energy released sum is highest on the young lithosphere and decreases with age. We propose a general model that relates the systematic variation of seismic energy released with the lithospheric age. Our analysis evaluates the main physical factors involved in the changes of energy released sum with the oceanic lithosphere age in MOR systems of different spreading rates. These observations are substantiated based on three cross-sections of the East Pacific Rise, six sections in the Mid Atlantic Ridge, and three profiles in the Central Indian Ridge. Our global model provides an additional tool for understanding tectonic processes, including the effects of seismicity and mid-plate volcanism, and a better understanding of the thermal evolution for the young oceanic lithosphere.
format	article
author	Nicolás Pinzón Carlos A. Vargas
author_facet	Nicolás Pinzón Carlos A. Vargas
author_sort	Nicolás Pinzón
title	Global variation of seismic energy release with oceanic lithosphere age
title_short	Global variation of seismic energy release with oceanic lithosphere age
title_full	Global variation of seismic energy release with oceanic lithosphere age
title_fullStr	Global variation of seismic energy release with oceanic lithosphere age
title_full_unstemmed	Global variation of seismic energy release with oceanic lithosphere age
title_sort	global variation of seismic energy release with oceanic lithosphere age
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/cf6b7a441ec94f8ea673a2b9e2745e58
work_keys_str_mv	AT nicolaspinzon globalvariationofseismicenergyreleasewithoceaniclithosphereage AT carlosavargas globalvariationofseismicenergyreleasewithoceaniclithosphereage
_version_	1718391812972871680

Global variation of seismic energy release with oceanic lithosphere age

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