TY - JOUR

T1 - Melt, fluids, and fractures beneath Ebeko Volcano (Kuril Islands) revealed by ambient noise attenuation tomography

AU - Cabrera-Pérez, Iván

AU - Komzeleva, Viktoria

AU - Berezhnev, Yaroslav

AU - Belovezhets, Nadezhda

AU - Koulakov, Ivan

N1 - Melt, fluids, and fractures beneath Ebeko Volcano (Kuril Islands) revealed by ambient noise attenuation tomography / I. Cabrera-Pérez, V. Komzeleva, Ya. Berezhnev [et al.] // Scientific Reports. – 2026. – Vol. 16. - No. 1. – P. 15134. – DOI 10.1038/s41598-026-43820-1. – EDN NFMLTS. This research is supported by grant FSUS-2025-0015 of the Ministry of Science and Higher Education of the Russian Federation.IC-P is funded by the European Union’s Horizon Europe research and innovation programme under the Marie Skłodowska-Curie Postdoctoral Fellowships – Global Fellowships (Grant Agreement No. 101208027, project VERNE).

PY - 2026/3/26

Y1 - 2026/3/26

N2 - The northern part of Paramushir Island (Kuril Arc) is dominated by the NNE-SSW oriented Vernadsky Ridge that hosts the presently active Ebeko Volcano, where phreatomagmatic eruptions coexist with complex hydrothermal activity. We apply ambient noise attenuation tomography (ANAT) to seismic data from a 21-station network, revealing three-dimensional attenuation structures. Key findings include: (1) Shallow high-attenuation anomalies (Qc-1) > 0.45 at 0.5–2 km depth) beneath Ebeko’s craters and Yuriev hot springs, mapping fracture-controlled fluid reservoirs; (2) A 4–6 km deep low-attenuation core (Qc-1) < 0.1) surrounded by high-attenuation zones, suggesting a magmatic storage region with radial fluid pathways; (3) A progressive north-to-south decrease in attenuation (Qc-1) > 0.45 to < 0.15) that mirrors the Vernadsky ridge’s volcanic evolution from extinct southern edifices to currently active Ebeko to the north. These results illuminate how seismic attenuation patterns track both active fluid pathways and volcanic system maturation in arc environments.

AB - The northern part of Paramushir Island (Kuril Arc) is dominated by the NNE-SSW oriented Vernadsky Ridge that hosts the presently active Ebeko Volcano, where phreatomagmatic eruptions coexist with complex hydrothermal activity. We apply ambient noise attenuation tomography (ANAT) to seismic data from a 21-station network, revealing three-dimensional attenuation structures. Key findings include: (1) Shallow high-attenuation anomalies (Qc-1) > 0.45 at 0.5–2 km depth) beneath Ebeko’s craters and Yuriev hot springs, mapping fracture-controlled fluid reservoirs; (2) A 4–6 km deep low-attenuation core (Qc-1) < 0.1) surrounded by high-attenuation zones, suggesting a magmatic storage region with radial fluid pathways; (3) A progressive north-to-south decrease in attenuation (Qc-1) > 0.45 to < 0.15) that mirrors the Vernadsky ridge’s volcanic evolution from extinct southern edifices to currently active Ebeko to the north. These results illuminate how seismic attenuation patterns track both active fluid pathways and volcanic system maturation in arc environments.

UR - https://www.scopus.com/pages/publications/105039202326

UR - https://elibrary.ru/item.asp?id=91350015

UR - https://www.mendeley.com/catalogue/753ff6a8-eaf2-341e-b73b-ae731c72e392/

U2 - 10.1038/s41598-026-43820-1

DO - 10.1038/s41598-026-43820-1

M3 - Article

C2 - 41888289

VL - 16

JO - Scientific Reports

JF - Scientific Reports

SN - 2045-2322

IS - 1

M1 - 15134

ER -