epicenters

noun

1. 1

   The point on the land or water surface directly above the focus, or hypocentre, of an earthquake.

2. 2

   The point on the surface of the earth directly above an underground explosion.

3. 3

   The focal point of any activity, especially if dangerous or destructive.

4. 4

   The geographical area in which an ongoing disaster, illness, crisis, or other destructive event is currently most severe.