Reverberation

The act of reverberating; especially, the act of reflecting light or heat, or reechoing sound; as, the reverberation of rays from a mirror; the reverberation of rays from a mirror; the reverberation of voices; the reverberation of heat or flame in a furnace.

a remote or indirect consequence of some action; "his declaration had unforeseen repercussions"; "reverberations of the market crash were felt years later"