eprintid: 2129 rev_number: 10 eprint_status: archive userid: 2 dir: disk0/00/00/21/29 datestamp: 2018-09-10 09:44:49 lastmod: 2018-09-10 09:44:49 status_changed: 2018-09-10 09:44:49 type: article metadata_visibility: show creators_name: Lopez-Comino, Jose Angel creators_name: Cesca, Simone creators_id: creators_id: simone.cesca@gfz-potsdam.de corp_creators: GFZ German Research Centre for Geosciences, Potsdam, Germany corp_creators: GFZ German Research Centre for Geosciences, Potsdam, Germany title: Source Complexity of an Injection Induced Event: The 2016 Mw 5.1 Fairview, Oklahoma Earthquake subjects: MP1 subjects: RU6_1 subjects: SG subjects: SHC subjects: SHU divisions: IP14 full_text_status: none abstract: Complex rupture processes are occasionally resolved for weak earthquakes and can reveal a dominant direction of the rupture propagation and the presence and geometry of main slip patches. Finding and characterizing such properties could be important for understanding the nucleation and growth of induced earthquakes. One of the largest earthquakes linked to wastewater injection, the 2016 Mw 5.1 Fairview, Oklahoma earthquake, is analyzed using empirical Green's function techniques to reveal its source complexity. Two subevents are clearly identified and located using a new approach based on relative hypocenter‐centroid location. The first subevent has a magnitude of Mw 5.0 and shows the main rupture propagated toward the NE, in the direction of higher pore pressure perturbations due to wastewater injection. The second subevent appears as an early aftershock with lower magnitude, Mw 4.7. It is located SW of the mainshock in a region of increased Coulomb stress, where most aftershocks relocated. date: 2018-05 date_type: published publication: Geophysical Research Letters volume: 45 number: 9 publisher: Geophysical Research Letters pagerange: 4025-4032 id_number: doi:10.1029/2018GL077631 issn: 00948276 official_url: http://doi.org/10.1029/2018GL077631 access_IS-EPOS: limited owner: Publisher acknowledgments2: SHEER_project citation: Lopez-Comino, Jose Angel and Cesca, Simone (2018) Source Complexity of an Injection Induced Event: The 2016 Mw 5.1 Fairview, Oklahoma Earthquake. Geophysical Research Letters, 45 (9). pp. 4025-4032. DOI: https://doi.org/10.1029/2018GL077631