P-wave seismic interferometric profile within the Granada Basin (Southern-Spain) Araque-Pérez, Carlos José Stich, Daniel Teixidó Ullod, Teresa Carmona, E Morales Soto, José Mancilla Pérez, Flor de Lis Seismic interferometry P-wave imaging Microseismicity This research was supported by project PID2023-150188NB-I00 (Spanish Ministry of Science and Innovation), as well as by PID2019- 109608GB-100: Estructura Litosférica y Deformación en las Béticas Orientales, and the program PTA2020-018650-I, all funded by the Spanish Ministry of Science and Innovation. We also thank I. Serrano Bermejo and M. A. Dengra for providing access to profile data from their 3D seismic tomographic model, which greatly assisted the comparison presented in the Supplementary Material. Funding for open access charge: Universidad de Granada / CBUA. A detailed seismic imaging profile of the subsurface beneath the Granada Basin (southern Spain) has been generated using P-wave seismic interferometry applied to local microseismicity. The analysis, conducted along a 44 km long, SW–NE trending transect, used 117 well-located earthquakes (12–17 km depth) recorded by only three local stations between 1984 and 2024. Our imaging methodology applies Common Interferometry Points (CIPs), a geometric construction that approximates the stationary phase points for impulsive seismic sources. CIPs provide a robust spatial organization of the interferometric traces, enabling improved stacking, enhanced reflector continuity, and extensive subsurface illumination despite the sparse station coverage. The resulting seismic section reveals the complex crustal architecture in the central part of the basin, including a mid-crustal reflector at 10–15 km depth. This low-angle structure is interpreted as being part of the basal detachment of the basin, decoupling the brittle upper crust from the ductile part. The detachment roots major normal faults that generate horst-and-graben structures within the basin. Integration with four decades of instrumental seismicity supports this structural interpretation and demonstrates the potential of the method to recover deep crustal structure in tectonically active and logistically challenging regions. 2026-02-09T09:32:23Z 2026-02-09T09:32:23Z 2026-03-26 journal article Araque-Pérez, C. J. (2026). P-wave seismic interferometric profile within the Granada Basin (Southern-Spain). Tectonophysics Volume 926, 26 March 2026, 231114. https://doi.org/10.1016/j.tecto.2026.231114 1879-3266 0040-1951 https://hdl.handle.net/10481/110752 10.1016/j.tecto.2026.231114 eng http://creativecommons.org/licenses/by-nc-nd/4.0/ open access Attribution-NonCommercial-NoDerivatives 4.0 Internacional Elsevier