Definition of epicentres:
(n) :
(seismology) The point on the land or water surface directly above the focus, or hypocentre, of an earthquake.
(n) :
(military) The point on the surface of the earth directly above an underground explosion.
(n) :
(figuratively, proscribed) The geographical area in which an ongoing disaster, illness, crisis, or other destructive event is currently most severe.
(n) :
(figuratively, proscribed) The focal point of any activity, especially if dangerous or destructive.
(v) :
Of an earthquake: to have its epicentre (at a specified location).