Where was the catastrophe of this play found iin hamlet and act?

The catastrophe in Shakespeare's "Hamlet" occurs in Act 5, primarily during the final scene of the play. This act culminates in a series of tragic events, including the deaths of key characters: Hamlet, Laertes, Gertrude, and Claudius. The climax reveals the consequences of revenge, betrayal, and moral corruption, leading to the downfall of the royal family and the kingdom of Denmark. Ultimately, the play highlights the tragic inevitability of fate and the destructive nature of human emotions.