eprintid: 1276 rev_number: 22 eprint_status: archive userid: 2 dir: disk0/00/00/12/76 datestamp: 2015-02-17 11:25:55 lastmod: 2017-02-08 12:21:42 status_changed: 2015-04-27 12:10:36 type: article metadata_visibility: show creators_name: Telesca, Luciano creators_name: do Nascimento, Aderson F. creators_name: Bezerra, F. H. R. creators_name: Ferreira, J. M. creators_id: luciano.telesca@imaa.cnr.it creators_id: creators_id: creators_id: corp_creators: National Research Council, Roma, Latium, Italy corp_creators: Universidade Federal do Rio Grande do Norte corp_creators: Universidade Federal do Rio Grande do Norte corp_creators: Universidade Federal do Rio Grande do Norte title: Analyzing the temporal fluctuations of the reservoir-triggered seismicity observed at Açu (Brazil) ispublished: pub subjects: RB2 subjects: SR subjects: SS divisions: EPOS-P full_text_status: none abstract: The time dynamics of the reservoir-induced seismicity observed in Açu area (Brazil) from November 1994 to April 1997 reveals a super-Poissonian behaviour in the direction of a clustering process, where the occurrence of an earthquake increases the likelihood of the occurrence of a subsequent one. The seismicity shows strong correlation for time scales larger than approximately 1 day up to about four months, being characterized by Poissonian behavior for timescales smaller than 1 day. Processes of formation of fractures in the anisotropic and heterogeneous rockmass, along with pore pressure diffusion driven processes, are hypothesized as physical mechanisms for the appearance of Poissonian and clusterized dynamics respectively. date: 2012 date_type: published publication: Natural Hazards and Earth System Science volume: 12 number: 3 publisher: European Geosciences Union pagerange: 805-811 id_number: doi:10.5194/nhess-12-805-2012 refereed: TRUE issn: 1684-9981 official_url: http://dx.doi.org/10.5194/nhess-12-805-2012 access_IS-EPOS: limited owner: Publisher citation: Telesca, Luciano and do Nascimento, Aderson F. and Bezerra, F. H. R. and Ferreira, J. M. (2012) Analyzing the temporal fluctuations of the reservoir-triggered seismicity observed at Açu (Brazil). Natural Hazards and Earth System Science, 12 (3). pp. 805-811. DOI: https://doi.org/10.5194/nhess-12-805-2012