How is fear represented in the opening scene (scene 1) of the tempest?

A violent storm rages around a small ship at sea. The master of the ship calls for his boatswain to rouse the mariners to action and prevent the ship from being run aground by the tempest. Chaos ensues. Some mariners enter, followed by a group of nobles comprised of Alonso, King of Naples, Sebastian, his brother, Antonio, Gonzalo, and others. We do not learn these men’s names in this scene, nor do we learn (as we finally do in Act II, scene i) that they have just come from Tunis, in Africa, where Alonso’s daughter, Claribel, has been married to the prince. As the Boatswain and his crew take in the topsail and the topmast, Alonso and his party are merely underfoot, and the Boatswain tells them to get below-decks. Gonzalo reminds the Boatswain that one of the passengers is of some importance, but the Boatswain is unmoved. He will do what he has to in order to save the ship, regardless of who is aboard.