eprintid: 1370 rev_number: 14 eprint_status: archive userid: 2 dir: disk0/00/00/13/70 datestamp: 2015-02-10 14:18:52 lastmod: 2017-02-08 12:21:31 status_changed: 2015-04-27 12:10:46 type: article metadata_visibility: show creators_name: Amorese, Daniel creators_id: daniel.amorese@unicaen.fr corp_creators: Institut de Physique Du Globe de Paris title: Applying a Change-Point Detection Method on Frequency-Magnitude Distributions ispublished: pub subjects: MP2_2 divisions: EPOS-P full_text_status: none abstract: A method based on nonparametric statistics (hereafter called “median- based analysis of the segment slope,” MBASS) is applied for the detection of change points in frequency magnitude distributions (FMDs). The determination of the lowest magnitude for which the Gutenberg–Richter relation still applies is a key point for the computation of reliable b-values. The change-point detection method presented here is used to determine automatically this threshold magnitude (called m 0 in this study) for large subsets extracted from four seismic catalogs. Results are successfully compared to those of a previous benchmark study from other authors. Moreover, the MBASS procedure is able to detect a magnitude artifact in the FMDs of a regional catalog. The results of the MBASS procedure confirm that a break in slope in a cumulative frequency distribution may be misleading when FMDs are analyzed by eye. date: 2007 date_type: published publication: Bulletin of the Seismological Society of America volume: 97 number: 5 publisher: Seismological Society of America pagerange: 1742-1749 id_number: doi:10.1785/0120060181 refereed: TRUE issn: 0037-1106 official_url: http://dx.doi.org/10.1785/0120060181 access_IS-EPOS: limited owner: Publisher citation: Amorese, Daniel (2007) Applying a Change-Point Detection Method on Frequency-Magnitude Distributions. Bulletin of the Seismological Society of America, 97 (5). pp. 1742-1749. DOI: https://doi.org/10.1785/0120060181