eruption

Example:His anger at the unjust pay cut was an outburst that caused a stir in the company.

Definition:A sudden burst of activity, emotion, or sound, especially one that is forceful or explosive.

Example:The volcano had a violent explosion that ejected rocks and lava.

Definition:A violent and sudden breaking open or tearing asunder, as of an exciting, angry, or fast-running nature.

Example:There was a flare-up of tension when the two groups met.

Definition:A brief period of renewed violence or activity, especially in a conflict or dispute.