Caribbean Plate 1843 in this region are possibly megathrust earthquakes. Along the geologically complex southern boundary, the Caribbean Plate interacts with the South American Plate forming Barbados, Trinidad and Tobago (all on the Caribbean Plate), and islands off the coast of Venezuela (including the Leeward Antilles) and Colombia. This boundary is in part the result of transform faulting along with thrust faulting and some subduction. The rich Venezuelan petroleum fields possibly result from this complex plate interaction. The Caribbean plate is moving eastward about 22 millimeters per year in relation to the South American plate. In Venezuela much of the movement between
Millerand Island base, which is five kilometres away on the Barry Island. The refuge consists of a red hut, used by the personnel employed in the missions carried out in the area, and has a capacity to accommodate four people, enough food for two weeks, fuel, gas and first aid kit. The island was mapped geologically in 1958 and 1959 by Keith Hoskins, a British geologist based on nearby Stonington Island. Millerand Island Millerand Island is a high rugged island in diameter, lying south of Cape Calmette, off the west coast of Graham Land. It was discovered by the French Antarctic Expedition