Seismicity of Deception Island volcano (Antarctica) from 2011-2022 surveys Carmona, Enrique Martín, Rosa Jiménez Morales, Vanessa Almendros González, Francisco Javier Serrano Bermejo, Inmaculada Stich, Daniel Abella, Rafael Deception Island Long-period seismicity Seismic network This work was partially funded by the Spanish Ministry of Economy through projects POL2006-08663, CTM2009-08085, CTM2010-11740 and CTM2011-16049 and by Assignment IGME-1198 for Supporting Activities to the Spanish Polar Committee. Additional support comes from project CTM2016-77315-R. Funding for the open-access charge was provided by Universidad de Granada/CBUA. Since 1994, the Andalusian Institute of Geophysics of the University of Granada group has been monitoring the seismic activity of Deception Island volcano (South Shetland Islands, Antarctica) during summer surveys. In this review, we analyse long-period and volcanic-tectonic events, including tremor episodes, recorded from 2011–2012 to 2021–2022 surveys with a local network and a seismic array. The seismo-volcanic activity on Deception Island occurs very locally, mainly as a result of tectonic destabilization induced by volcanic activity along with regional stresses, as a consequence of rifting and subduction processes spanning the South Shetland Islands, Bransfield Strait and Antarctica Peninsula. During this period, two changes to the volcanic alert level due to different volcanic parameters can be highlighted. The first of them was caused by the 2014–2015 seismic swarm as a consequence of a great regional perturbation located to the north-east of Deception Island, which spread around to the entire volcano. The second one, in the 2019–2020 survey, was established as a result of a significant increase in deformation parameters as a prelude of the August 2020 massive earthquake swarm that occurred in the Bransfield Strait, near the Orca submarine volcano. Furthermore, in the previous 2018–2019 survey, a peak of seismic activity was also recorded. 2026-01-19T10:12:23Z 2026-01-19T10:12:23Z 2025 journal article Carmona, E., Martín, R., Jiménez-Morales, V., Almendros, J., Serrano, I., Stich, D., & Abella, R. (2025). Seismicity of Deception Island volcano (Antarctica) from 2011–2022 surveys. Antarctic Science, 37(5), 427–451. doi:10.1017/S0954102025100151 0954-1020 1365-2079 https://hdl.handle.net/10481/109863 10.1017/S0954102025100151 eng http://creativecommons.org/licenses/by-nc-nd/3.0/ open access Creative Commons Attribution-NonCommercial-NoDerivs 3.0 License Cambridge