The island of Antigua shows severely eroded volcanic remnants along its forested southwestern quadrant. Although Antigua receives approximately 100 cm (40 in) of precipitation annually, wide fluctuations in rainfall amounts occasionally create serious water shortages, especially for the agricultural industry. St. John's, the country's capital, is located along the northwest coast, adjacent to one of the island's many natural harbors. More than half of the country's population lives in the St. John's area. Image courtesy of NASA.