flash floods are a constant threat; destructive hurricanes can be expected during the late summer months
volcanism: Dominica was the last island to be formed in the Caribbean some 26 million years ago, it lies in the middle of the volcanic island arc of the Lesser Antilles that extends from the island of Saba in the north to Grenada in the south; of the 16 volcanoes that make up this arc, five are located on Dominica, more than any other island in the Caribbean: Morne aux Diables (861 m), Morne Diablotins (1,430 m), Morne Trois Pitons (1,387 m), Watt Mountain (1,224 m), which last erupted in 1997, and Morne Plat Pays (940 m); the two best known volcanic features on Dominica, the Valley of Desolation and the Boiling Lake thermal areas, lie on the flanks of Watt Mountain and both are popular tourist destinations
a transit point for cocaine and marijuana destined for North America, Europe, and elsewhere in the Caribbean; some local demand for cocaine and some use of synthetic drugs
Dominica-Venezuela: is the only Caribbean state to challenge Venezuela's sovereignty claim over Aves Island, which permits Venezuela to extend its EEZ and continental shelf claims over a large portion of the eastern Caribbean Sea