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. 2023 Jul 10;13:11115. doi: 10.1038/s41598-023-38205-7

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© The Author(s) 2023

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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Comparison between the seismic precursor (RSAM of the northern component signal of the STRC station, filtered in the 1–7 Hz frequency band) indicated by the blue dots, the T-Idx temperature index, marked by the red dots, and the SVO strainmeter signal (black line), filtered in the 0.00014–0.5 Hz frequency band, for the overflow on October 9 (a) and November 16 (b), 2022. The yellow rectangles indicate the time intervals between the onset of the seismic and thermal precursors and the onset of the overflows. These timeslots are 58 min, starting at 06:24 UTC and 40 min, starting at 05:38 UTC, for the events on October 9 and November 16, 2022, respectively. The amplitudes are normalized with the addition of appropriate offsets for the legibility of the graph.