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
North Caribbean Coast Autonomous Region YATAMA (ethnic indigenous party)) as well as all the municipalities. They hold sessions in an Assembly in Puerto Cabezas. The RACCN, in addition to Mestizos, contains populations from different indigenous groups, including the Miskitos, Mayangnas, and Creoles. The RACCN contains eight municipalities: North Caribbean Coast Autonomous Region The North Caribbean Coast Autonomous Region (, ), sometimes shortened to RACN, or RACCN (for North Caribbean Coast Autonomous Region), or RAAN (for its former name of ), is one of two autonomous regions in Nicaragua. It covers an area of 32,159 km² and has a population of 249,700 (2005 census). It is