TITLE: GCN CIRCULAR NUMBER: 19180 SUBJECT: Fermi GBM trigger 479509107/160312874 is not a GRB DATE: 16/03/13 20:36:22 GMT FROM: C. Michelle Hui at MSFC/Fermi-GBM P. Veres (UAH) reports on behalf of the Fermi GBM Team: The Fermi Gamma-ray Burst Monitor (GBM) trigger 479509107/160312874 at 20:58:23.83 UT on 12 March 2016, tentatively classified as a GRB, is in fact not due to a GRB. This trigger is due to a particle event.