The hypocenter of an earthquake—the underground point where the quake originates (the origin point of seismic waves).
気象庁は震源を海底付近の浅い場所と発表した。
The Meteorological Agency announced that the hypocenter was a shallow spot near the seabed.
震源の深さによって、地表で感じる揺れ方が変わることがある。
Depending on the depth of the hypocenter, the way the shaking is felt at the surface can vary.