This is the 9319th most frequent Japanese word.
直下
"Directly below" or "immediately beneath."
直下 is used to denote a vertical alignment or directly below a specific point, in this case, the earthquake epicenter.
地震の震源地直下では強い揺れが観測された。
Strong shaking was observed directly beneath the earthquake epicenter.
直下 refers to being directly beneath or at the base of the station, expressing proximity and location.
駅直下の商店街で買い物をしました。
I shopped at the shopping district directly below the station.
直下 signifies the area immediately beneath something, in this instance, the building.