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. 2021 Feb 4;11:3114. doi: 10.1038/s41598-021-82532-6

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© The Author(s) 2021

Open AccessThis article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/.

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Left panel—Map of the earthquake ground shaking: the dimension of the station markers is proportional to the energy associated to the Up component of the earthquake ground shaking for some stations near the epicenter. It is evident that north placed stations are characterized by a higher energy than south placed ones. Right panel—Space-time sTEC variations at the SIPs for less than two hours (22:54:49-23:59:59 GPS time) on 16 $^{th}$ September 2015 for all the satellites in view (cut-off angle set to 20 $^{\circ}$ ) from all the 118 GPS stations.