Why is the east paciffic rise not in the middle of the paciffic ocean?

The East Pacific Rise is not in the middle of the Pacific Ocean because it is a divergent tectonic plate boundary located along the eastern edge of the Pacific Plate. It runs roughly parallel to the western coasts of North and South America, where the Pacific Plate is moving away from the North American and Cocos Plates. This geological formation occurs due to the upwelling of magma from the mantle, creating new oceanic crust, which is why it is positioned along the edge rather than centrally in the ocean basin.