eprintid: 1696 rev_number: 19 eprint_status: archive userid: 6 dir: disk0/00/00/16/96 datestamp: 2016-07-08 07:36:54 lastmod: 2017-02-08 12:21:43 status_changed: 2016-07-08 07:36:54 type: article metadata_visibility: show creators_name: Urban, Pawel creators_name: Lasocki, Stanislaw creators_name: Blascheck, Patrick creators_name: do Nascimento, Aderson F. creators_name: Van Giang, Nguyen creators_name: Kwiatek, Grzegorz creators_id: urban@igf.edu.pl creators_id: lasocki@igf.edu.pl creators_id: creators_id: creators_id: creators_id: kwiatek@gfz-potsdam.de corp_creators: Institute of GeophysicsPolish Academy of Sciences corp_creators: Institute of GeophysicsPolish Academy of Sciences corp_creators: Institute of GeophysicsUniversity of Stuttgart corp_creators: Departamento de GeofísicaUFRN corp_creators: Institute of GeophysicsVietnam Academy of Science and Technology corp_creators: Helmholtz Centre Potsdam, GFZ German Research Centre for Geosciences, Section 3.2: Geomechanics and Rheology title: Violations of Gutenberg–Richter Relation in Anthropogenic Seismicity subjects: MP2_2 subjects: RB2 subjects: RS1 subjects: RV2 subjects: SG subjects: SMU subjects: SR divisions: EPOS-P divisions: EPOS-ESI5 full_text_status: none keywords: Magnitude scaling Gutenberg–Richter relation breakdown non-parametric estimation anthropogenic seismicity 1 Introduction abstract: Anthropogenic seismicity (AS) is the undesired dynamic rockmass response to technological processes. AS environments are shallow hence their heterogeneities have important impact on AS. Moreover, AS is controlled by complex and changeable technological factors. This complicated origin of AS explains why models used in tectonic seismicity may be not suitable for AS. We study here four cases of AS, testing statistically whether the magnitudes follow the Gutenberg–Richter relation or not. The considered cases include the data from Mponeng gold mine in South Africa, the data observed during stimulation of geothermal well Basel 1 in Switzerland, the data from Acu water reservoir region in Brazil and the data from Song Tranh 2 hydropower plant region in Vietnam. The cases differ in inducing technologies, in the duration of periods in which they were recorded, and in the ranges of magnitudes. In all four cases the observed frequency–magnitude distributions statistically significantly differ from the Gutenberg–Richter relation. Although in all cases the Gutenberg–Richter b value changed in time, this factor turns out to be not responsible for the discovered deviations from the Gutenberg–Richter-born exponential distribution model. Though the deviations from Gutenberg–Richter law are not big, they substantially diminish the accuracy of assessment of seismic hazard parameters. It is demonstrated that the use of non-parametric kernel estimators of magnitude distribution functions improves significantly the accuracy of hazard estimates and, therefore, these estimators are recommended to be used in probabilistic analyses of seismic hazard caused by AS. date: 2016-05 date_type: published publication: Pure and Applied Geophysics volume: 173 number: 5 publisher: Springer Verlag pagerange: 1517-1537 id_number: doi:10.1007/s00024-015-1188-5 issn: 0033-4553 official_url: http://doi.org/10.1007/s00024-015-1188-5 access_IS-EPOS: limited owner: Publisher citation: Urban, Pawel and Lasocki, Stanislaw and Blascheck, Patrick and do Nascimento, Aderson F. and Van Giang, Nguyen and Kwiatek, Grzegorz (2016) Violations of Gutenberg–Richter Relation in Anthropogenic Seismicity. Pure and Applied Geophysics, 173 (5). pp. 1517-1537. DOI: https://doi.org/10.1007/s00024-015-1188-5