Last Updated：2025/11/23

(geology) The depth below the Earth's surface of the hypocentre of an earthquake. / (optics) The field of view of a camera that is in sharp focus.

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focal depth

Source Word

focal depth

Noun

Japanese Meaning

（地学）地震の震源（焦点）の地表からの深さ / （光学）カメラでピントが合っている範囲、すなわち被写界深度

The earthquake's focal depth was surprisingly shallow, causing more damage near the epicenter.

地震の震源の深さは驚くほど浅く、震央付近でより大きな被害をもたらしました。

Sense（1）

(geology) The depth below the Earth's surface of the hypocentre of an earthquake.

Sense（2）

(optics) The field of view of a camera that is in sharp focus.

focal depths

（ plural ）