The Four Major Seas of China: Geography and Significance

The Four Major Seas of China: Geography and Significance

China's maritime domain is defined by four marginal seas of the Pacific Ocean, each vital to its economy, security, and environment:

1. Bohai Sea

Location: Northeast, between Liaodong and Shandong Peninsulas.
Area: ~78,000 km².
Significance: Shallow (avg. 18m), connected via Bohai Strait. Key for fisheries, shipping, and oil/gas.

2. Yellow Sea

Location: Between China and the Korean Peninsula.
Area: ~415,000 km².
Significance: Receives Yellow River discharge. Vital for fisheries and trade; connected to East China Sea via Korea Strait.

3. East China Sea

Location: Between China and Japan.
Area: ~1,249,000 km².
Significance: Largest marginal sea. Contains disputed Diaoyu/Senkaku Islands. Rich fisheries; connected to Pacific via Okinawa Trough.

4. South China Sea

Location: South of China, bordered by Vietnam, Philippines, Malaysia, Brunei, Indonesia, Taiwan.
Area: ~3.5 million km².
Significance: Strategic global trade route; vast fisheries; significant oil/gas reserves; subject to overlapping territorial claims.