
, or the , is an
archipelago
An archipelago ( ), sometimes called an island group or island chain, is a chain, cluster, or collection of islands. An archipelago may be in an ocean, a sea, or a smaller body of water. Example archipelagos include the Aegean Islands (the o ...
in the
Tsushima Strait, which is administered as the city of
Iki in
Nagasaki Prefecture,
Japan
Japan is an island country in East Asia. Located in the Pacific Ocean off the northeast coast of the Asia, Asian mainland, it is bordered on the west by the Sea of Japan and extends from the Sea of Okhotsk in the north to the East China Sea ...
. The islands have a total area of with a total population of 28,008. Only four (4) of the twenty-three (23) named islands are permanently inhabited. Together with the neighboring islands of
Tsushima, they are collectively within the borders of the
Iki–Tsushima Quasi-National Park.
Geology
The Iki Islands are volcanic in origin: they are the exposed and eroded
basalt
Basalt (; ) is an aphanite, aphanitic (fine-grained) extrusive igneous rock formed from the rapid cooling of low-viscosity lava rich in magnesium and iron (mafic lava) exposed at or very near the planetary surface, surface of a terrestrial ...
ic summit of a massive
Quaternary
The Quaternary ( ) is the current and most recent of the three periods of the Cenozoic Era in the geologic time scale of the International Commission on Stratigraphy (ICS), as well as the current and most recent of the twelve periods of the ...
stratovolcano
A stratovolcano, also known as a composite volcano, is a typically conical volcano built up by many alternating layers (strata) of hardened lava and tephra. Unlike shield volcanoes, stratovolcanoes are characterized by a steep profile with ...
last active over 600,000 years ago.
Iki Island is slightly oval in shape, and measures approximately from north-south and from east-west. The highest elevation is , a weakly curved peak with a highest elevation at above sea level. The average height of the land surface is 100 meters above sea level.
[National Geospatial Intelligence Agency (NGIA). ''Prostar Sailing Directions 2005 Japan Enroute''. Prostar Publications (2005). ]
The archipelago is approximately north-northeast of the
Kyushu
is the third-largest island of Japan's Japanese archipelago, four main islands and the most southerly of the four largest islands (i.e. excluding Okinawa Island, Okinawa and the other Ryukyu Islands, Ryukyu (''Nansei'') Ryukyu Islands, Islands ...
coast at its closest point and southeast of the Tsushima Islands.
History
The Iki Islands have been inhabited since the
Japanese Paleolithic era, and numerous artifacts from the
Jōmon,
Yayoi
The Yayoi period (弥生時代, ''Yayoi jidai'') (c. 300 BC – 300 AD) is one of the major historical periods of the Japanese archipelago. It is generally defined as the era between the beginning of food production in Japan and the emergence o ...
and
Kofun periods have been found by archaeologists, indicating continuous human occupation and activity.
In the
Kojiki Iki island is one of the islands
Izanagi and
Izanami gave birth to. It is the fifthborn.
Ikikoku

In the Chinese ''Wèizhì Wōrén chuán'' (Japanese 魏志倭人伝, ''Gishi
Wajinden''), part of the ''
Records of the Three Kingdoms
The ''Records of the Three Kingdoms'' is a Chinese official history written by Chen Shou in the late 3rd century CE, covering the end of the Han dynasty (220 CE) and the subsequent Three Kingdoms period (220–280 CE). It is regard ...
'' dating from the third century, mention is made of a country called “Iki”, (一支国, Iki-koku), located on an archipelago east of the
Korean Peninsula
Korea is a peninsular region in East Asia consisting of the Korean Peninsula, Jeju Island, and smaller islands. Since the end of World War II in 1945, it has been politically divided at or near the 38th parallel between North Korea (Dem ...
. Archaeologists have tentatively identified this with the large Yayoi period settlement of
Harunotsuji, one of the largest to have been discovered in Japan, where artifacts uncovered indicate a close contact with the Japanese islands and the Asian mainland.
It is sometimes referred to as "", which may be a typographic error.
In historical records. It was said to have bigger fields than and a population three times larger.
There is a museum dedicated to the country located in
Nagasaki.
Iki Province
The islands were organized as
Iki Province under the
Ritsuryō
is the historical Japanese legal system, legal system based on the philosophies of Confucianism and Legalism (Chinese philosophy), Chinese Legalism in Feudal Japan. The political system in accord to Ritsuryō is called "Ritsuryō-sei" (). ''Kya ...
reforms in the latter half of the seventh century, and the name ''Iki-no-kuni'' appears on wooden markers found in the imperial capital of
Nara
The National Archives and Records Administration (NARA) is an independent agency of the United States government within the executive branch, charged with the preservation and documentation of government and historical records. It is also task ...
.
During the
Heian period
The is the last division of classical Japanese history, running from 794 to 1185. It followed the Nara period, beginning when the 50th emperor, Emperor Kammu, moved the capital of Japan to Heian-kyō (modern Kyoto). means in Japanese. It is a ...
, the island was attacked by
Jurchen pirates in the
Toi invasion of 1019. Afterwards, the islands came under the rule of the
Matsura clan, who developed trade and commercial relations between
Goryeo
Goryeo (; ) was a Korean state founded in 918, during a time of national division called the Later Three Kingdoms period, that unified and ruled the Korea, Korean Peninsula until the establishment of Joseon in 1392. Goryeo achieved what has b ...
in Korea, Tsushima, Iki and Kyushu. However, the islands were again devastated by the
Kamakura period
The is a period of History of Japan, Japanese history that marks the governance by the Kamakura shogunate, officially established in 1192 in Kamakura, Kanagawa, Kamakura by the first ''shōgun'' Minamoto no Yoritomo after the conclusion of the G ...
Mongol invasions of Japan in 1274 and 1281 during which time many of its inhabitants were slaughtered. Throughout the
Muromachi period, the islands were a main base for the Japanese
Wokou
''Wokou'' ( zh, c=, p=Wōkòu; ; Hepburn romanization, Hepburn: ; ; literal Chinese translation: "dwarf bandits"), which translates to "Japanese pirates", were pirates who raided the coastlines of China and Korea from the 13th century to the 17 ...
pirates, who plundered coastal settlements in Korea and China. Following the establishment of the
Tokugawa shogunate
The Tokugawa shogunate, also known as the was the military government of Japan during the Edo period from 1603 to 1868.
The Tokugawa shogunate was established by Tokugawa Ieyasu after victory at the Battle of Sekigahara, ending the civil wars ...
in the
Edo period
The , also known as the , is the period between 1600 or 1603 and 1868 in the history of Japan, when the country was under the rule of the Tokugawa shogunate and some 300 regional ''daimyo'', or feudal lords. Emerging from the chaos of the Sengok ...
, the islands came under the rule of
Hirado Domain.
Modern period
Following the
Meiji Restoration
The , referred to at the time as the , and also known as the Meiji Renovation, Revolution, Regeneration, Reform, or Renewal, was a political event that restored Imperial House of Japan, imperial rule to Japan in 1868 under Emperor Meiji. Althoug ...
, the islands became part of "Hirado Prefecture" from 1871, which then became part of Nagasaki Prefecture.
The islands were fortified with numerous
coastal artillery batteries during
World War II
World War II or the Second World War (1 September 1939 – 2 September 1945) was a World war, global conflict between two coalitions: the Allies of World War II, Allies and the Axis powers. World War II by country, Nearly all of the wo ...
, but did not experience any combat. Remains of these fortifications can be found on the island of Wakamiyajima, north of the main Iki Island. On November 18, 1948, Lt. William Downham, from the USAF 36th Fighter Group stationed at
Ashiya Air Field, experienced engine failure in his
North American P-51 Mustang while patrolling the
Korea Strait
The Korea Strait is a strait, sea passage in East Asia between the Korean Peninsula and Japan. It connects the East China Sea, the Yellow Sea and the Sea of Japan in the northwest Pacific Ocean. The strait is split by Tsushima Island into two par ...
between Japan and the
Korean Peninsula
Korea is a peninsular region in East Asia consisting of the Korean Peninsula, Jeju Island, and smaller islands. Since the end of World War II in 1945, it has been politically divided at or near the 38th parallel between North Korea (Dem ...
. He successfully parachuted onto Iki Island.
In the 1960s and 1970s, in particularly the town of
Iki, the islanders were notorious for overfishing, but blamed declining catches on the local species of whales and dolphins. In 1977, the local fishermen invited television companies to film the mass slaughter of dolphins. In response, activists heavily condemned the fishermen's acts of killing the dolphins. In view of the already endangered
Japanese amberjack
The Japanese amberjack or yellowtail, ''Seriola quinqueradiata'', is a species of Amberjack, jack bony fish, fish in the family Carangidae, native to the northwest Pacific Ocean. It is known as ''shiyu'' () in China, ''bang'eo'' () in Korea, and ...
, the local town government banned large-scale, commercial fishing of Japanese amberjack after 1982.
A group of small scale fishermen in 2016 were reported as fighting back against this overfishing. As of 2018 fishermen are protesting against large vessels from
Mainland Japan overfishing around Iki island.
In popular culture
The island features in the 2020 video game ''
Ghost of Tsushima''. It is an expansion pack for the game with the main game taking place on
Tsushima.
Climate
Transportation
Iki Island has ferry terminals in Ashibe, Ishida and Gōnoura, which connect Iki to mainland Japan such as
Fukuoka
is the List of Japanese cities by population, sixth-largest city in Japan and the capital city of Fukuoka Prefecture, Japan. The city is built along the shores of Hakata Bay, and has been a center of international commerce since ancient times. ...
and
Kitakyushu. Located on the east coast
Iki Airport connects the island to
Nagasaki Airport in
Nagasaki. The
Japan National Route 382 connects the hamlets of the island together, and the bus company "Iki-kōtsu" provides for public transport.
Islands
References
{{Authority control
Archipelagoes of Japan
Islands of Nagasaki Prefecture
Landforms of Nagasaki Prefecture
Pleistocene stratovolcanoes
Stratovolcanoes of Japan
Archipelagoes of the Pacific Ocean
Iki Island