Epicenter

The epicenter (/ˈɛpɪˌsɛntər/), epicentre, or epicentrum^[1] in seismology is the point on the Earth's surface directly above a hypocenter or focus, the point where an earthquake or an underground explosion originates.

^ Oxford English Dictionary: "The point over the centre: applied in Seismol. to the outbreaking point of earthquake shocks."

[1] Oxford English Dictionary: "The point over the centre: applied in Seismol. to the outbreaking point of earthquake shocks."

[1]

Earthquakes
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Types Mainshock Foreshock Aftershock Blind thrust Doublet Interplate Intraplate Megathrust Remotely triggered Slow Submarine Supershear Tsunami Earthquake swarm
Causes Fault movement Volcanism Induced seismicity
Characteristics Epicentral distance Hypocenter Shadow zone Seismic waves P wave S wave
Measurement Seismometer Seismic magnitude scales Seismic intensity scales
Prediction Coordinating Committee for Earthquake Prediction Forecasting
Other topics Shear wave splitting Adams–Williamson equation Flinn–Engdahl regions Earthquake engineering Seismite Seismology
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