eprintid: 1838 rev_number: 17 eprint_status: archive userid: 6 dir: disk0/00/00/18/38 datestamp: 2017-03-02 10:37:52 lastmod: 2018-03-28 12:22:44 status_changed: 2017-03-02 10:37:52 type: article metadata_visibility: show creators_name: Parotidis, M. creators_name: Shapiro, Serge A. creators_name: Rothert, Elmar creators_id: shapiro@geophysik.fu-berlin.de creators_id: rothert@q-con.de corp_creators: Geophysics Department, Freie Universitaet Berlin, Germany corp_creators: Geophysics Department, Freie Universitaet Berlin, Germany corp_creators: Geophysics Department, Freie Universitaet Berlin, Germany title: Back front of seismicity induced after termination of borehole fluid injection subjects: MP2 subjects: MP4 subjects: RF1 subjects: RU2_3 subjects: RU4_1 subjects: SG divisions: IP4 full_text_status: none abstract: We study a phenomenon occurring by hydraulic fracturing stimulations, where events are triggered during injection and also after the end of injection, sometimes over hours or even days. We assume that pore-pressure diffusion is the main triggering mechanism. Based on the theory of linear poroelasticity, an equation is derived, that describes the distance from injection point at which seismicity is terminated at a given time after the end of fluid injection. We call this distance the back front of induced seismicity. Using numerical modeling and data from three case studies we show that the back front is observed in reality. The existence of the back front is an important phenomenon supporting the idea of the pore-pressure diffusion nature of fluid injection triggered seismicity. Moreover, it provides an additional means of rock characterization allowing the estimation of the scalar hydraulic diffusivity of the seismically active area. date: 2004 date_type: published publication: Geophysical Research Letters volume: 31 number: 2 publisher: American Geophysical Union id_number: doi:10.1029/2003GL018987 issn: 0094-8276 official_url: http://doi.org/10.1029/2003GL018987 access_IS-EPOS: limited owner: Publisher citation: Parotidis, M. and Shapiro, Serge A. and Rothert, Elmar (2004) Back front of seismicity induced after termination of borehole fluid injection. Geophysical Research Letters, 31 (2). DOI: https://doi.org/10.1029/2003GL018987