Temporal evolution of a seismic sequence induced by a gas injection in the Eastern coast of Spain

Abstract Induced seismicity associated with energy production is becoming an increasingly important issue worldwide for the hazard it poses to the exposed population and structures. We analyze one of the rare cases of induced seismicity associated with the underwater gas storage operations observed...

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Autores principales:	S. Ruiz-Barajas, N. Sharma, V. Convertito, A. Zollo, B. Benito
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2017
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/964fe1a25053493a8aaf0924f463752d
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spelling	oai:doaj.org-article:964fe1a25053493a8aaf0924f463752d2021-12-02T12:30:18ZTemporal evolution of a seismic sequence induced by a gas injection in the Eastern coast of Spain10.1038/s41598-017-02773-22045-2322https://doaj.org/article/964fe1a25053493a8aaf0924f463752d2017-06-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-02773-2https://doaj.org/toc/2045-2322Abstract Induced seismicity associated with energy production is becoming an increasingly important issue worldwide for the hazard it poses to the exposed population and structures. We analyze one of the rare cases of induced seismicity associated with the underwater gas storage operations observed in the Castor platform, located in the Valencia gulf, east Spain, near a complex and important geological structure. In September 2013, some gas injection operations started at Castor, producing a series of seismic events around the reservoir area. The larger magnitude events (up to 4.2) took place some days after the end of the injection, with EMS intensities in coastal towns up to degree III. In this work, the seismic sequence is analyzed with the aim of detecting changes in statistical parameters describing the earthquake occurrence before and after the injection and identifying possible proxies to be used for monitoring the sequence evolution. Moreover, we explore the potential predictability of these statistical parameters which can be used to control the field operations in injection/storage fluid reservoirs. We firstly perform a retrospective approach and next a perspective analysis. We use different techniques for estimating the value of the expected maximum magnitude that can occur due to antropogenic activities in Castor.S. Ruiz-BarajasN. SharmaV. ConvertitoA. ZolloB. BenitoNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 7, Iss 1, Pp 1-15 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q S. Ruiz-Barajas N. Sharma V. Convertito A. Zollo B. Benito Temporal evolution of a seismic sequence induced by a gas injection in the Eastern coast of Spain
description	Abstract Induced seismicity associated with energy production is becoming an increasingly important issue worldwide for the hazard it poses to the exposed population and structures. We analyze one of the rare cases of induced seismicity associated with the underwater gas storage operations observed in the Castor platform, located in the Valencia gulf, east Spain, near a complex and important geological structure. In September 2013, some gas injection operations started at Castor, producing a series of seismic events around the reservoir area. The larger magnitude events (up to 4.2) took place some days after the end of the injection, with EMS intensities in coastal towns up to degree III. In this work, the seismic sequence is analyzed with the aim of detecting changes in statistical parameters describing the earthquake occurrence before and after the injection and identifying possible proxies to be used for monitoring the sequence evolution. Moreover, we explore the potential predictability of these statistical parameters which can be used to control the field operations in injection/storage fluid reservoirs. We firstly perform a retrospective approach and next a perspective analysis. We use different techniques for estimating the value of the expected maximum magnitude that can occur due to antropogenic activities in Castor.
format	article
author	S. Ruiz-Barajas N. Sharma V. Convertito A. Zollo B. Benito
author_facet	S. Ruiz-Barajas N. Sharma V. Convertito A. Zollo B. Benito
author_sort	S. Ruiz-Barajas
title	Temporal evolution of a seismic sequence induced by a gas injection in the Eastern coast of Spain
title_short	Temporal evolution of a seismic sequence induced by a gas injection in the Eastern coast of Spain
title_full	Temporal evolution of a seismic sequence induced by a gas injection in the Eastern coast of Spain
title_fullStr	Temporal evolution of a seismic sequence induced by a gas injection in the Eastern coast of Spain
title_full_unstemmed	Temporal evolution of a seismic sequence induced by a gas injection in the Eastern coast of Spain
title_sort	temporal evolution of a seismic sequence induced by a gas injection in the eastern coast of spain
publisher	Nature Portfolio
publishDate	2017
url	https://doaj.org/article/964fe1a25053493a8aaf0924f463752d
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_version_	1718394410978246656

Temporal evolution of a seismic sequence induced by a gas injection in the Eastern coast of Spain

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