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. 2022 Aug 17;12:14000. doi: 10.1038/s41598-022-18130-x

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© The Author(s) 2022

Open Access This 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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Spectrograms: The spectrogram generated by MFFI time-series (first derivative of strain rate) is compared to the spectrogram of the ΗΝΕ components of ATHP acceleration recordings. Similar dynamics are deduced, despite the high noise impairing MFFI spectral components above 5 Hz, attributed to low-cost solutions employed and the high noise imparing the terrestrial link.