Underwater ridges of the Pacific Ocean

mid-oceanic ridge

mountain range

oceanic ridge at the boundary between the Pacific and Antarctic tectonic plates

mountain range

divergent plate boundary off the coast of the Pacific Northwest region of North America.

mid-ocean ridge west of British Columbia, Canada

submarine ridge between New Caledonia and New Zealand

tectonic spreading center off the northern coast of California and southern Oregon

submarine ridge on the Nazca Plate off the west coast of South America

aseismic ridge on the Nazca Plate that is being subducted beneath the South American Plate

divergent boundary between the South American coast and the triple junction of the Nazca Plate, the Cocos Plate, and the Pacific Plate

volcanic island and seamount chain on the Nazca Plate

chain of over 70 seamounts in the Southwest Pacific Ocean