The hypocenter (literally: `below the center` from the Greek: ὑπόκεντρον) refers to the site of an earthquake or a nuclear explosion. In the former, it is a synonym of the focus; in the latter, of ground zero. ==Earthquakes== An earthquake`s hypocenter is the position where the strain energy stored in the rock is first released, mark...... Found on http://en.wikipedia.org/wiki/Hypocenter
hypocenter. The point within the earth where an earthquake rupture starts. Also commonly termed the focus. Found on http://www.encyclo.co.uk/local/21456