Ulleungdo
NASA Landsat7 image of Ulleung-do (north at top).
Elevation	984 m (3,228 ft)
Location	Sea of Japan, east of Korea
Prominence	984 m (3,228 ft)
Coordinates	37°30′N, 130°52′E
Type	Stratovolcano
Last eruption	7350 BC (?)

Ulleungdo (also spelled Ulreungdo) is a South Korean island in the Sea of Japan (East Sea). Formerly known as Dagelet to the Europeans, Ulleungdo is about 120 km (75 mi) east of the Korean Peninsula. Volcanic in origin, the rocky steep-sided island is the top of a large stratovolcano which rises from the seafloor, reaching a maximum elevation of 984 m (3,228 ft) at Seonginbong Peak. The island consists primarily of trachyandesite rock. A major explosive eruption about 9,350 years ago reached a Volcanic Explosivity Index of 6 and deposited tephra as far as central Honshū over 800 km (500 mi) away, while producing pyroclastic flows on the island and decapitating its top to form a caldera. Image File history File links No higher resolution available. ... A topographical summit is a point on a surface which is higher in elevation than all points immediately adjacent to it. ... The Sea of Japan is a marginal sea of the western Pacific Ocean, bordered by Japan, Korea and Russia. ... This article is about the Korean peninsula and civilization. ... In topography, prominence, also known as autonomous height, relative height or shoulder drop (in America) or prime factor (in Europe), is a concept used in the categorization of hills and mountains, also known as peaks. ... Map of Earth showing lines of latitude (horizontally) and longitude (vertically), Eckert VI projection; large version (pdf, 1. ... Mountains can be characterized in several ways. ... A cutaway diagram of a stratovolcano Mount St. ... Cleveland Volcano in the Aleutian Islands of Alaska photographed from the International Space Station For other uses, see Volcano (disambiguation). ... Jamo redirects here. ... Hanja is the Korean name for Chinese characters. ... The Revised Romanization of Korean is the official Korean language romanization system in South Korea. ... McCune-Reischauer romanization is one of the two most widely used Korean language romanization systems, along with the Revised Romanization of Korean, which replaced (a modified) McCune-Reischauer as the official romanization system in South Korea in 2000. ... For Korea as a whole, see Korea. ... The Sea of Japan is a marginal sea of the western Pacific Ocean, bordered by Japan, Korea and Russia. ... The Korean Peninsula is a peninsula in East Asia. ... A cutaway diagram of a stratovolcano Mount St. ... Trachyandesite is an extrusive igneous rock. ... VEI and ejecta volume correlation The Volcanic Explosivity Index (VEI) was devised by Chris Newhall of the U.S. Geological Survey and Steve Self at the University of Hawaii in 1982 to provide a relative measure of the explosiveness of volcanic eruptions. ... Tephra refers to air-fall material produced by a volcanic eruption regardless of composition or fragment size. ... This article does not cite any references or sources. ... Pyroclastic flows sweep down the flanks of Mayon Volcano, Philippines, in 1984 Pyroclastic flows are a common and devastating result of some volcanic eruptions. ... Satellite image of Santorini. ...

The island of Ulleungdo has an area of 73.15 km² (28.24 sq mi) with about 10,000 inhabitants. It makes up the main part of Ulleung County, North Gyeongsang Province, South Korea. The main city of Ulleungdo is the port of Dodong, which serves as the main ferry port between Ulleungdo and the Korean mainland. Ulleungdo is a popular tourist site. The other main economic activity is fishery, including the harvest of cuttlefish, which can be seen drying in the sun in many places on Ulleungdo. Ulleung County (Ulleung-gun) is a county in North Gyeongsang Province, South Korea. ... North Gyeongsang is a province in eastern South Korea. ... A fishery (plural: fisheries) is an organized effort by humans to catch fish or other aquatic species, an activity known as fishing. ... Orders and Families †Vasseuriina †Vasseuriidae †Belosepiellidae Sepiina †Belosaepiidae Sepiadariidae Sepiidae Cuttlefish are marine animals of the order Sepiida belonging to the Cephalopoda class (which also includes squid, octopuses, and nautiluses). ...

History

Archaeological evidence indicates that the island has been inhabited since the 1st millennium BC. The first confirmed historical reference to Ulleungdo is in the Samguk Sagi for the year 512. In that year, the Silla general Kim Isabu conquered the island, which had previously been the autonomous nation of Usan-guk. Some accounts relate that he used a number of wooden lions to intimidate the population, threatening to turn them loose unless they surrendered. We dont have an article called Samguk sagi Start this article Search for Samguk sagi in. ... Silla (also spelled Shilla, traditional dates 57 BCE - 935 CE) was one of the Three Kingdoms of Korea. ... Kim Isabu was a general of Silla during the 6th century. ... The nation of Usan-guk occupied Ulleung-do and the adjacent islands (including the Liancourt Rocks) during the Korean Three Kingdoms period. ...

Usan-guk did not remain under the Silla yoke, however, and the island did not become a permanent political part of Korea until 930, when it was annexed by Goryeo. Remote as it is from the Korean mainland, Ulleungdo was a recurrent security headache for the Goryeo and Joseon dynasties. It was devastated by Jurchen pirate raids in the 11th century, and by Wokou pirate raids in the 14th century. A clash with Japan over fishing rights in the 1690s was precipitated by the Korean fisherman An Yongbok. In response to these difficulties, Joseon adopted an "empty-island" policy which however proved impossible to enforce. The empty-island policy was officially rescinded in 1881, after which the government sought to encourage additional settlement of Ulleungdo. Silla (also spelled Shilla, traditional dates 57 BCE - 935 CE) was one of the Three Kingdoms of Korea. ... Taegeuk is a traditional symbol of Korea Capital Gaegyeong Language(s) Korean Religion Buddhism Government Monarchy Wang  - 918 - 946 Taejo  - 949 - 975 Gwangjong  - 1259 - 1274 Wonjong  - 1351 - 1374 Gongmin Historical era 918 - 1392  - Later Three Kingdoms rise 892  - Coronation of Taejo June 15, 918  - Korea-Khitan Wars 993 - 1019  - Mongolian... Taegeuk is a traditional symbol of Korea Capital Gaegyeong Language(s) Korean Religion Buddhism Government Monarchy Wang  - 918 - 946 Taejo  - 949 - 975 Gwangjong  - 1259 - 1274 Wonjong  - 1351 - 1374 Gongmin Historical era 918 - 1392  - Later Three Kingdoms rise 892  - Coronation of Taejo June 15, 918  - Korea-Khitan Wars 993 - 1019  - Mongolian... Territory of Joseon after Jurchen conquest of King Sejong Capital Hanseong Language(s) Korean Religion Neo-Confucianism Government Monarchy Wang  - 1392 - 1398 Taejo (first)  - 1863 - 1897 Gojong (last)1 Yeong-uijeong  - 1431 - 1449 Hwang Hui  - 1466 - 1472 Han Myeonghoe  - 1592 - 1598 Ryu Seongryong  - 1894 Kim Hongjip History  - Coup of 1388... The Jurchens (Chinese: 女真, pinyin: nǚzhēn) were a Tungusic people who inhabited parts of Manchuria and northern Korea until the seventeenth century, when they became the Manchus. ... Sixteenth century Japanese pirate raids. ...

Image File history File links Map_Ulleung-do. ... Image File history File links Map_Ulleung-do. ...

Tourism

Favorite activities for tourists are hiking, fishing, and eating raw fish. Sightseeing boats make regular three-hour circuits about Ulleungdo, departing from the harbor at Dodong and passing by all the points of interest along the coast, including many interesting rock formations and the small neighboring island of Jukdo. Other scenic sites are Seonginbong, the highest peak on the island (984 m); Bongnae waterfall; the "natural icehouse"; and a coastal cliff from which Liancourt Rocks (Dokdo islets) can be discerned in the distance. Two hikers in the Mount Hood National Forest Eagle Creek hiking Hiking is a form of walking, undertaken with the specific purpose of exploring and enjoying the scenery. ... Fishing is the activity of hunting for fish by hooking, trapping, or gathering. ... Hoae, also spelled Hwe (IPA: or ), is a Korean dish consisting of thinly sliced raw fish, and other raw seafood. ... Jukdo is a small island adjacent to Ulleungdo, South Korea. ... “Dokdo” redirects here. ...

References

• Global Volcanism Program: Ulreung

External links

• Ulleung County government
• Ullungdo.com: Tourist Information (In Korean Only)
• Ulleungdo, Dokdo islands to be preserved as Nat'l Park
• Galbijim wiki page on Ulleungdo