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We investigate the influence of the mining stope (underground excavation or void) on seismic inversions for the scalar moment, corner frequency, source radius, stress drop and moment tensor using synthetic events created within elastodynamic numerical modelling software, WAVE3D. The main objective is to determine whether the source parameters calculated from the recorded waveforms are due to a combination of the stope source and the pillar sources, rather than being related only to crushing of the pillar or shearing in the pillar footwall. The main finding is that the presence of stopes, and types of pillars, have a significant impact on the seismic moment and other source parameters. This is important since the moment is viewed as a robust parameter on which seismic magnitude is often based; however, this study indicates that moments calculated for pillar failure in a tabular stoping environments are less representative of the shearing or crushing source than originally thought.<\/jats:p><jats:p>This article is part of the theme issue \u2018Fracture dynamics of solid materials: from particles to the globe\u2019.<\/jats:p>","DOI":"10.1098\/rsta.2020.0134","type":"journal-article","created":{"date-parts":[[2021,3,15]],"date-time":"2021-03-15T08:05:25Z","timestamp":1615795525000},"page":"20200134","update-policy":"https:\/\/doi.org\/10.1098\/crossmark-policy","source":"Crossref","is-referenced-by-count":4,"title":["Complexities of underground mining seismic sources"],"prefix":"10.1098","volume":"379","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-1581-0420","authenticated-orcid":true,"given":"Lindsay M.","family":"Linzer","sequence":"first","affiliation":[{"name":"SRK Consulting (South Africa), 265 Oxford Road, Illovo 2196, South Africa"},{"name":"School for Geosciences, University of the Witwatersrand, Johannesburg, South Africa"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Mark W.","family":"Hildyard","sequence":"additional","affiliation":[{"name":"School of Earth and Environment, University of Leeds, Leeds LS2 9JT, UK"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Johan","family":"Wesseloo","sequence":"additional","affiliation":[{"name":"Australian Centre for Geomechanics, The University of Western Australia, Perth, Australia"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"175","published-online":{"date-parts":[[2021,3,15]]},"reference":[{"key":"e_1_3_6_2_2","first-page":"100p","volume-title":"Rock fracture and rockbursts","author":"Ortlepp WD","year":"1997"},{"key":"e_1_3_6_3_2","doi-asserted-by":"publisher","DOI":"10.1002\/2015JB012085"},{"key":"e_1_3_6_4_2","doi-asserted-by":"publisher","DOI":"10.1029\/98RG00717"},{"key":"e_1_3_6_5_2","unstructured":"Milev AM Spottswoode SM Stewart RD. 1999 Dynamic response of the rock surrounding deep level mining excavations. 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