Penumbra

noun

A partial shadow, as in an eclipse, between regions of complete shadow and complete illumination.
The diffuse outer part of a sunspot.

A partial lunar eclipse occurs when the Moon passes into the penumbra, or partial shadow.

An area in which something exists to a lesser or uncertain degree.

An outlying surrounding region; a periphery.

Well, consider the following penumbra of events that surround the current rumpus.