The Kermadec Ridge is an underwater mountain range located in the South Pacific Ocean, extending from New Zealand's North Island to the Kermadec Islands. It is part of the larger Kermadec Trench system, which is known for its geological activity, including earthquakes and volcanic eruptions. The ridge is formed by tectonic plate movements, specifically the subduction of the Pacific Plate beneath the Australian Plate. This region is rich in marine biodiversity, hosting various species of fish, corals, and other marine life. The Kermadec Ridge is also significant for scientific research, as it provides insights into plate tectonics and the unique ecosystems found in deep-sea environments.