Antigua is in the Caribbean Sea north of Venezuala. Between 15 and 20 degrees latitude and 60 and 65 degrees latitude.
15 degrees 34 north and 33 degrees 36 east
48 degrees north longitude and 15 degrees east latitude
The coordinates 15 degrees north and 50 degrees east correspond to a location in the country of Saudi Arabia, specifically in the Rub' al Khali desert.
That's in Mali near the Burkina Faso border.
15 degrees 53 minutes north, 120 degrees 17 minutes east.
That point is about 15 miles southeast of the center of Alexandria, Egypt.
Vietnam
The island location at 15 degrees east and 38 degrees north is the island of Sicily in Italy. It is the largest island in the Mediterranean Sea and is known for its rich history, beautiful landscapes, and delicious cuisine.
The point is about a mile away from Noto Gouye Diame, Senegal.
Those coordinates are in India, all of which is in Asia.
The coordinates 18 degrees 15 minutes north, 77 degrees 30 minutes west correspond to a location in the Caribbean Sea, specifically southeast of Cuba and northwest of Jamaica.