Magrini, FabrizioDiaferia, GiovanniBoschi, LapoCammarano, Fabio2025-05-302025-05-300956-540XORCID:/0000-0003-2417-2686/work/171156798http://www.scopus.com/inward/record.url?scp=85085590981&partnerID=8YFLogxKhttps://hdl.handle.net/1885/733755144We compile a data set of Rayleigh-wave phase velocities between pairs of stations, based on teleseismic events located on the same great circle as the two stations. We validate our observations against dispersion estimates based on ambient-noise cross correlations at the same station pairs. Discrepancies between the results of the two methods can in principle be explained by deviations in the wave propagation path between earthquake and receivers, due to lateral heterogeneity in the Earth's structure, but the latter effect has, so far, not been precisely quantified nor corrected for. We implement an algorithm to measure the arrival angle of earthquake-generated surface waves and correct the dispersion measurements accordingly. Application to a data set from the Central-Western Mediterranean shows that the arrival-angle correction almost entirely accounts for the discrepancy in question, decreasing significantly the velocity bias for a wide range of periods.7enPublisher Copyright: © 2020 The Author(s). Published by Oxford University Press on behalf of The Royal Astronomical Society.Seismic interferometrySurface waves and free oscillationsTheoretical seismology2020-03-0110.1093/gji/ggz56085085590981