Final answer:
The Pacific Ocean's present stage in the supercontinent cycle is that it is a major tectonic plate and part of the larger Ring of Fire.
Step-by-step explanation:
The Pacific Ocean's present stage in the supercontinent cycle is that it is a major tectonic plate and part of the larger Ring of Fire. The Pacific plate is moving northward relative to the North American plate, which has led to the formation of major geological features such as the San Andreas Fault in California and the Cascade Range in the U.S. Pacific Northwest. The movement of these plates is also responsible for the development of volcanic activity and earthquakes in the Pacific Ocean region.