Ask the Chatbot Games & Quizzes History & Society Science & Tech Biographies Animals & Nature Geography & Travel Arts & Culture ProCon Money Videos
Britannica Sources used in this answer

Which marginal seas are part of the western Pacific Ocean?

Created from Britannica articles using AI. AI can make mistakes, so verify using Britannica articles.
Map of the Pacific Ocean showing depth contours in varying shades of blue, major submarine features such as trenches, ridges, and basins labeled throughout the ocean, and neighboring landmasses including Asia, Australia, North and South America. Principal cities along the Pacific rim and island groups are marked, along with international boundaries.
Pacific Ocean

The western Pacific Ocean is characterized by an irregular coastline featuring numerous marginal seas, which are largely defined by bordering peninsulas and island arcs. From north to south, these marginal seas include:1

Additionally, the Philippine Sea is a significant section of the western North Pacific Ocean, situated east and north of the Philippines and bordered by various island arcs.3