Seismicity and 3-D body-wave velocity models across the Hengill geothermal area, SW Iceland

• Main Authors: Obermann, Anne, id_orcid:0 000-0001-6933-6301, Wu, Sin-Mei, id_orcid:0 000-0001-8330-471X, Ágústsdóttir, Thorbjörg, Duran, Alejandro, Diehl, Tobias, id_orcid:0 000-0001-6264-1506, Sánchez Sánchez-Pastor, Maria Del Pilar, id_orcid:0 000-0002-1163-5488, Kristjansdóttir, Sigridur, Hjörleifsdóttir, Vala, Wiemer, Stefan, id_orcid:0 000-0002-4919-3283, Hersir, Gylfi Páll
• Format: Article in Journal/Newspaper
• Language: English
• Published: Frontiers Media 2022
• Subjects: induced seismicity; geothermal; tomographic imaging; b-value; velocity model; Hengill; Grensdalur; Iceland
• Online Access: https://hdl.handle.net/20.500.11850/591855; https://doi.org/10.3929/ethz-b-000591855

We image shallow crustal structures and analyze seismicity patterns in the Hengill high-enthalpy geothermal area in SW Iceland, exploiting a temporary densification of the seismic network 2018 to 2020. Using a subset of 6,300 high-quality manually picked P- and S-phases, we compute a minimum 1-D mod...