The Caribbean Plate is primarily a transform boundary. This means that the plate is characterized by horizontal movement where two tectonic plates slide past each other. The most famous example of this type of boundary is the San Andreas Fault in California.
In the case of the Caribbean Plate, it is bounded by several transform faults, including the Cayman Trough and the Motagua Fault. These boundaries are responsible for the significant seismic activity in the region, including earthquakes.
Additionally, the Caribbean Plate also has convergent boundaries where it collides with the North American Plate and the South American Plate. These collisions result in the formation of mountain ranges and volcanic activity, such as the Lesser Antilles volcanic arc.
In summary, the Caribbean Plate is mainly a transform boundary with some convergent boundaries, leading to a complex tectonic environment with frequent earthquakes and volcanic activity.