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
Montague Island Light Montague Island Nature Reserve. Access to the island is restricted. Access is available only through guided tours from Narooma, and reservations is required. Overnight stays for up to 11 people are available at the keeper's house. The tower is constructed from interlocking granite blocks which were quarried on the island. It is fitted with a bronze handrail. There are at least two single-storey lighthouse keeper's houses. Montague Island is 350 kilometres south of Sydney and approximately 9 kilometres off shore from Narooma. The Great Dividing Range forms the mainland backdrop to scenic coastal formations including beaches and rocky headlands. Large