TITLE: GCN CIRCULAR NUMBER: 18139 SUBJECT: GBM Trigger 150813665 is not a GRB DATE: 15/08/13 18:51:21 GMT FROM: Peter Jenke at MSFC P. Jenke (UAH) reports on behalf of the Fermi GBM Team: "The Fermi Gamma-ray Burst Monitor (GBM) trigger bn150813665 at 15:57:41.15 UT on 13 August 2015, tentatively classified as a GRB, is in fact not due to a GRB. This trigger is likely due to a soft gamma repeater event."