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While previous studies have confirmed the dependence of azimuthal anisotropy on plate speed, the first order control on radial anisotropy is unclear. In this study, we develop 2D ridge flow models combined with mantle fabric calculations to report that faster plates generate higher tectonics stresses and strain rates which lower the dislocation creep viscosity and lead to deeper anisotropy than beneath slower plates. We apply the SGLOBE\u2010rani tomographic filter, resulting in a flat depth\u2010age trend and stronger anisotropy beneath faster plates, which correlates well with 3D global anisotropic mantle models. Our predictions and observations suggest that as plate speed increases from 2 to 8\u00a0cm\/yr, radial anisotropy increases by \u223c0.01\u20130.025 in the upper 100\u2013200\u00a0km of the mantle between 10 and 60\u00a0Ma.<\/jats:p>","DOI":"10.1029\/2022gl097795","type":"journal-article","created":{"date-parts":[[2022,8,3]],"date-time":"2022-08-03T23:23:32Z","timestamp":1659569012000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":10,"title":["On the Relationship Between Oceanic Plate Speed, Tectonic Stress, and Seismic Anisotropy"],"prefix":"10.1029","volume":"49","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-7314-8741","authenticated-orcid":false,"given":"E.","family":"Kendall","sequence":"first","affiliation":[{"name":"Department of Earth Sciences University College London  London UK"},{"name":"GFZ German Research Centre for Geosciences  Potsdam Germany"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-7717-5931","authenticated-orcid":false,"given":"M.","family":"Faccenda","sequence":"additional","affiliation":[{"name":"Dipartimento di Geoscienze Universit\u00e0 di Padova  Padua Italy"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-9492-6415","authenticated-orcid":false,"given":"A. 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