2 synonym groups for Nachbeben

aftershocks, follow-up tremors, secondary quakes, succeeding earthquakes, ensuing tremors, subsequent earthquakes, following quakes, later tremors, successive quakes, subsequent tremors [x]

tremors, quakes, vibrations, reverberations, shakes, jolts, shocks, seismic waves, ripples, echoes, aftereffects, repercussions, residual tremors, secondary quakes, follow-up quakes, post-quake tremors, aftertremors, afterquakes, seismic aftereffects, seismic disturbances [x]