East China Sea
Overview
 
The East China Sea is a marginal sea
Marginal sea
The term marginal sea has differing meanings. In one sense the term is equivalent to territorial waters. In another sense the term indicates a partially enclosed sea adjacent to or widely open to the open ocean, but bounded by submarine ridges...

 east of China. It is a part of the Pacific Ocean
Pacific Ocean
The Pacific Ocean is the largest of the Earth's oceanic divisions. It extends from the Arctic in the north to the Southern Ocean in the south, bounded by Asia and Australia in the west, and the Americas in the east.At 165.2 million square kilometres in area, this largest division of the World...

 and covers an area of 1,249,000 km² or 750,000 square miles.
The East China Sea is bounded on the east by the Kyūshū
Kyushu
is the third largest island of Japan and most southwesterly of its four main islands. Its alternate ancient names include , , and . The historical regional name is referred to Kyushu and its surrounding islands....

 and Ryukyu Islands
Ryukyu Islands
The , also known as the , is a chain of islands in the western Pacific, on the eastern limit of the East China Sea and to the southwest of the island of Kyushu in Japan. From about 1829 until the mid 20th century, they were alternately called Luchu, Loochoo, or Lewchew, akin to the Mandarin...

 of Japan
Japan
Japan is an island nation in East Asia. Located in the Pacific Ocean, it lies to the east of the Sea of Japan, China, North Korea, South Korea and Russia, stretching from the Sea of Okhotsk in the north to the East China Sea and Taiwan in the south...

, on the south by the island of Taiwan
Taiwan
Taiwan , also known, especially in the past, as Formosa , is the largest island of the same-named island group of East Asia in the western Pacific Ocean and located off the southeastern coast of mainland China. The island forms over 99% of the current territory of the Republic of China following...

, and on the west by mainland China
Mainland China
Mainland China, the Chinese mainland or simply the mainland, is a geopolitical term that refers to the area under the jurisdiction of the People's Republic of China . According to the Taipei-based Mainland Affairs Council, the term excludes the PRC Special Administrative Regions of Hong Kong and...

 and the Asia
Asia
Asia is the world's largest and most populous continent, located primarily in the eastern and northern hemispheres. It covers 8.7% of the Earth's total surface area and with approximately 3.879 billion people, it hosts 60% of the world's current human population...

n continent. It is connected with the South China Sea
South China Sea
The South China Sea is a marginal sea that is part of the Pacific Ocean, encompassing an area from the Singapore and Malacca Straits to the Strait of Taiwan of around...

 by the Taiwan Strait
Taiwan Strait
The Taiwan Strait or Formosa Strait, formerly known as the Black Ditch, is a 180-km-wide strait separating Mainland China and Taiwan. The strait is part of the South China Sea and connects to East China Sea to the northeast...

 and with the Sea of Japan
Sea of Japan
The Sea of Japan is a marginal sea of the western Pacific Ocean, between the Asian mainland, the Japanese archipelago and Sakhalin. It is bordered by Japan, North Korea, Russia and South Korea. Like the Mediterranean Sea, it has almost no tides due to its nearly complete enclosure from the Pacific...

 by the Korea Strait
Korea Strait
The Korea Strait is a sea passage between South Korea and Japan, connecting the East China Sea and the Sea of Japan in the northwest Pacific Ocean...

; it opens in the north to the Yellow Sea
Yellow Sea
The Yellow Sea is the name given to the northern part of the East China Sea, which is a marginal sea of the Pacific Ocean. It is located between mainland China and the Korean Peninsula. Its name comes from the sand particles from Gobi Desert sand storms that turn the surface of the water golden...

.

States with borders on the sea (clockwise from north) include: South Korea, Japan, Republic of China (Taiwan)
Republic of China
The Republic of China , commonly known as Taiwan , is a unitary sovereign state located in East Asia. Originally based in mainland China, the Republic of China currently governs the island of Taiwan , which forms over 99% of its current territory, as well as Penghu, Kinmen, Matsu and other minor...

 and the People's Republic of China.
Max depth: 3,000 m.
The International Hydrographic Organization
International Hydrographic Organization
The International Hydrographic Organization is the inter-governmental organisation representing the hydrographic community. It enjoys observer status at the UN and is the recognised competent authority on hydrographic surveying and nautical charting...

 defines the limits of the "Eastern China Sea (Tung Hai)" as follows:

On the south. The northern limit of the South China Sea
South China Sea
The South China Sea is a marginal sea that is part of the Pacific Ocean, encompassing an area from the Singapore and Malacca Straits to the Strait of Taiwan of around...

 [From Fuki Kaku the north point of Formosa
Taiwan
Taiwan , also known, especially in the past, as Formosa , is the largest island of the same-named island group of East Asia in the western Pacific Ocean and located off the southeastern coast of mainland China. The island forms over 99% of the current territory of the Republic of China following...

 to Kiushan Tao (Turnabout Island)
Kiushan Tao
Kiushan Tao is an island east of China. It is also known as Niushan Dao , Niu Shan, and Turnabout Island. The island forms a part of the boundary between the East China Sea and the South China Sea.-External links:...

 on to the south point of Haitan Tao
Pingtan Island
Pingtan Island is located in eastern coastal area in Fujian province, China. It is the largest island in Fujian, and the fifth largest island in China...

 (25°25'N) and thence westward on the parallel of 25°24' north to the coast of Fukien
Fujian
' , formerly romanised as Fukien or Huguing or Foukien, is a province on the southeast coast of mainland China. Fujian is bordered by Zhejiang to the north, Jiangxi to the west, and Guangdong to the south. Taiwan lies to the east, across the Taiwan Strait...

], thence from Santyo the northeastern point of Formosa to the west point of Yonakuni Island
Yonaguni
is one of the Yaeyama Islands. It is the westernmost inhabited island of Japan and lies from the east coast of Taiwan, between the East China Sea and the Pacific Ocean proper....

 and thence to Haderuma Sima
Hateruma
Hateruma is an island in the Yaeyama District of Okinawa Prefecture, Japan. Part of the town Taketomi, it is the southern-most inhabited island in Japan at 24°2’25” north latitude, 123°47’16” east longitude...

 (24°03′N 123°47′E).

On the east. From Haderuma Sima a line including the Miyako Retto

Miyako Islands
The are a group of islands in Okinawa Prefecture, Japan, east of the Yaeyama Islands.-Islands grouping:*Japanese Archipelago**Nansei Islands***Ryūkyū Shotō****Sakishima Islands*****Miyako Islands-Inhabited islands:*Miyako Islands...

 to the east point of Miyako Sima
Miyako-jima
Miyakojima is the largest and the most populous island among the Miyako Islands of Okinawa Prefecture, Japan. It lies approximately 400 kilometres east of Taipei, Taiwan...

 and thence to Okinan Kaku, the southern extremity of Okinawa Sima
Okinawa Island
Okinawa Island is the largest of the Okinawa Islands and the Ryukyu Islands of Japan, and is home to Naha, the capital of Okinawa Prefecture. The island has an area of...

 through this island to Ada-Ko Sima (Sidmouth Island) on to the East point of Kikai Sima
Kikai, Kagoshima
is a town located in Ōshima District, Kagoshima, Japan.As of 2008, the town had an estimated population of 8,207 and the density of 144 persons per km². The total area is 56.94 km².Kikai Airport is located in the town....

 (28°20'N) through Tanegra Sima
Tanegashima
is an island lying to the south of Kyushu, in southern Japan, and is part of Kagoshima Prefecture. The island is the second largest of the Ōsumi Islands....

 (30°30'N) to the north point thereof and on to Hi-Saki (31'17'N) in Kyūshū
Kyushu
is the third largest island of Japan and most southwesterly of its four main islands. Its alternate ancient names include , , and . The historical regional name is referred to Kyushu and its surrounding islands....

.

On the north. From Nomo Saki (32°35'N) in Kyusyu to the south point of Hukae Sima (Goto Retto

Goto Islands
The are Japanese islands in the East China Sea, off the western coast of Kyūshū. The islands are a part of Nagasaki Prefecture.- Geography :There are 140 islands in total, including five main islands:,,,, and....

) and on through this island to Ose Saki (Cape Goto) and to Hunan Kan, the South point of Saisyu To
Jeju-do
Jeju-do is the only special autonomous province of South Korea, situated on and coterminous with the country's largest island. Jeju-do lies in the Korea Strait, southwest of Jeollanam-do Province, of which it was a part before it became a separate province in 1946...

 (Quelpart), through this island to its western extreme and thence along the parallel of 33°17' north to the mainland.

On the west. The mainland of China.


The Yangtze River
Yangtze River
The Yangtze, Yangzi or Cháng Jiāng is the longest river in Asia, and the third-longest in the world. It flows for from the glaciers on the Tibetan Plateau in Qinghai eastward across southwest, central and eastern China before emptying into the East China Sea at Shanghai. It is also one of the...

 (Chang Jiang) is the largest river flowing into the East China Sea.
  • Senkaku Islands
    Senkaku Islands
    The , also known as the Diaoyu Islands or Diaoyutai Islands or the Pinnacle Islands, are a group of disputed uninhabited islands in the East China Sea...

     (Japanese) or Diaoyu Islands (Chinese).
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