Overview of the flaring regions as seen by the Solar Dynamics Observatory. (A) HMI line of sight magnetic field map saturated at ±1500 G. The black cross-hair with an enclosed rectangle marks the surface footpoint of the unstable filament. (B) AIA 1600 Å map showing the central brighter flare ribbons along with fainter remote brightenings associated with the event (pointed at by the white arrows). (C) and (D) AIA 335 Å and 131 Å images displaying the overlying coronal structures. In (C) the yellow circle outlines the filament footpoint. The three arrows in (D) point to the footpoints of coronal loops connected to the flaring site and the remote brightenings.