A series of lesser mountains, with many transverse spurs, extends generally west to the extremity of the island, surmounting an extensive plateau. Thermal springs occur in various areas. No other volcanic phenomena are apparent, but the island is subject to severe earthquakes. Many small un-navigatable rivers traverse the island. Climate To Top of Page of Page Tropical climatic conditions prevail in the coastal lowlands of Jamaica.
Annual precipitation is characterized by wide regional variations.
The months of maximum precipitation are May, June, October, and November. The island is subject to hurricanes in late summer and early autumn. To Top of Page of Page Mineral deposits in Jamaica include gypsum, lead, and salt. The bauxite deposits, in the central section of the island, are among the richest in the world. Rich soils are found on the coastal plains.