Figure 1. Dependence of the FD magnitude on the summarized unsigned magnetic flux in dimmings and arcades: (a) for FDs unambiguously identified with concrete solar eruptions (filled symbols); (b) for all considered events including events with a probable source identification (open symbols). Here and afterwards the diamonds denote eruptions in ARs, and triangles denote filament eruptions outside ARs. The dashed lines delimit the accepted deviation band.