John Gill Commentary Psalms 48:7

"With the east wind Thou breakest the ships of Tarshish." — Psalms 48:7 (ASV)

Thou breakest the ships of Tarshish with east wind .
] This is either another simile, expressing the greatness of the dread and fear that shall now seize the kings of the earth; which will be, as Kimchi observes, as if they were smitten with a strong east wind, which breaks the ships of Tarshish; and to the same purpose is the note of Aben Ezra; who says, the psalmist compares the pain that shall take hold upon them to an east wind in the sea, which breaks the ships; for by Tarshish is meant, not Tartessus in Spain, nor Tarsus in Cilicia, or the port to which the Prophet Jonah went and took shipping; but the sea in general:

or else this phrase denotes the manner in which the antichristian kings, and antichristian states, wilt be destroyed; just as ships upon the ocean are dashed to pieces with a strong east wind:

or it may design the loss of all their riches and substance brought to them in ships; hence the lamentations of merchants, and sailors, and ship masters, (Revelation 18:15–19) .