TITLE: GCN CIRCULAR NUMBER: 19437 SUBJECT: FERMI GBM bursts from the magnetar SGR 1935+2154 DATE: 16/05/19 00:51:38 GMT FROM: George A. Younes at George Washington U G. Younes (GWU) reports on behalf of the Fermi/GBM magnetar team: "Magnetar SGR 1935+2154 is recently undergoing an outburst. The source has triggered Fermi/GBM thus far 10 times, starting on 2016 May 14. We list below the times of these triggers: Trigger number Trigger date Trigger time (UT) bn160514349 2016-05-14 08:21:54.66 bn160516868 2016-05-16 20:49:47.00(*) bn160518359 2016-05-18 08:37:07.59 bn160518382 2016-05-18 09:09:23.91(*) bn160518422 2016-05-18 10:07:26.79 bn160518436 2016-05-18 10:28:02.84 bn160518625 2016-05-18 14:59:31.08 bn160518648 2016-05-18 15:33:47.01 bn160518709 2016-05-18 17:00:31.76 bn160518820 2016-05-18 19:40:37.47 (*) GBM triggers simultaneous with reported Swift/BAT triggers from the source This is the third detected outburst from the source in less than 2 years (July 2014: Cummmings 2014 GCN 16530, Kaneko et al. 2014 GCN 16577; February 2015: Burrows et al. 2015 GCN 17485, Burns & Younes 2015 GCN 17496). Detailed analysis of the FERMI GBM bursts detected during all three outbursts is underway and will be reported elsewhere. We strongly encourage multi-wavelength follow-up of the source during this recent outburst."