Unraveling the Causes of the Seismicity Induced by Underground Gas Storage at Castor, Spain

Published on Apr 16, 2021in Geophysical Research Letters4.497
· DOI :10.1029/2020GL092038
Víctor Vilarrasa23
Estimated H-index: 23
(CSIC: Spanish National Research Council),
Silvia De Simone6
Estimated H-index: 6
(University of Rennes)
+ 1 AuthorsAntonio Villaseñor3
Estimated H-index: 3
(CSIC: Spanish National Research Council)
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Abstract
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The 2013 seismic sequence at the Castor injection platform offshore Spain, including three earthquakes of magnitude 4.1, occurred during the initial filling of a planned Underground Gas Storage facility. The Castor sequence is one of the most important cases of induced seismicity in Europe and a rare example of seismicity induced by gas injection into a depleted oil field. Here we use advanced seismological techniques applied to an enhanced waveform dataset, to resolve the geometry of the faults...
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