/ (ˈhaɪpəʊˌsɛntə) /
Also called: ground zero the point on the ground immediately below the centre of explosion of a nuclear bomb in the atmosphere
another term for focus (def. 6)
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Examples from the Web for hypocentre
This is known variously as the seismic centre, centrum, hypocentre, origin or focus.