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
Calala Island Calala Island is located in the Caribbean Sea and is part of the Pearl Cays archipelago, off the coast of Nicaragua. The island is under the administration of the South Caribbean Coast Autonomous Region. At some point in its history, the name of the island changed from Lime Cay to Calala Island. The likelihood is due to a name clash with a Jamaican cay. The island is located around 4 km off the Nicaraguan coast, lying 27 km from Pearl Lagoon. Following a prolonged period of neglect, Calala Island was purchased by Tim Wickham and became an inhabited island again