Epicenter 震央
(重定向自Epicentre)
The epicenter, epicentre or epicentrum is the point on the Earth's surface that is directly above the hypocentre or focus, the point where an earthquake or underground explosion originates. The word derives from the New Latin noun epicentrum, the latinisation of the ancient Greek adjective ἐπίκεντρος (epikentros), "occupying a cardinal point, situated on a centre", from ἐπί (epi) "on, upon, at" and κέντρον (kentron) "centre". The term was coined by the Irish seismologist Robert Mallet.