A child is pushed at one point, causing a mark on his face. This is done unintentionally from the one who does so, and I wouldn't call it abuse, but it is worth noting if this is a particularly strong trigger for you.
A character wanders endlessly in an underground subway station tunnel and can't find a way out, no doors or windows - it's not close quarters but the inability to escape could trigger claustrophobic feelings.
There are also a couple of scenes featuring crowded subway cars.
The climax scene contains a tsunami which was intense enough that the movie’s official social media issued a warning a few days after the showing opened. (Its depiction is much more dramatic than the game’s red water anomaly)
there’s a pretty distressing scene where the lead hears a baby crying in one of the coin lockers. he checks it and it stops. right after though the locker doors slam and all begin to rattle with the sound multiple babies screaming and crying. these are all meant to be anomalies but it’s still distressing nonetheless.
It is unclear exactly what the endless tunnel is but both characters and the chapter titles of the film itself imply it may be hell. In a Q&A the director expressed drawing inspiration from Dante's Inferno.
The ex of the main character is pregnant and a number of the anomalies are tied to his indecision of whether he wants to be a father or not. The film is pretty explicit in that the "right" action is he should take the responsibility and this is a sizable focus in the second half of the film.