earth science

Seongsan Ilchulbong

Seongsan Ilchulbong is a earth science topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand Seongsan Ilchulbong rather than just read about it. In short: Seongsan Ilchulbong (Korean: 성산일출봉), also called Sunrise Peak, is a volcano on eastern Jeju Island, in Seongsan-ri, Seogwipo, Jeju Province, South Korea. It is 182 meters high and has a volcanic crater at the top.

Key takeaways

Seongsan Ilchulbong belongs to earth science; place it in that map before memorising details.
Learn the definition first, then one example that makes the definition concrete.
Connect Seongsan Ilchulbong to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of Seongsan Ilchulbong from memory before moving on to harder problems.

Reference excerpt

Seongsan Ilchulbong (Korean: 성산일출봉), also called Sunrise Peak, is a volcano on eastern Jeju Island, in Seongsan-ri, Seogwipo, Jeju Province, South Korea. It is 182 meters high and has a volcanic crater at the top. Considered one of South Korea's most beautiful tourist sites, it is famed for being the easternmost mountain on Jeju, and thus the best spot on the island to see the first sunrise of the year. Seongsan Ilchulbong is a UNESCO Natural World Heritage Site, as part of the item Jeju Volcanic Island and Lava Tubes.

Etymology "Seongsan" and "Ilchulbong" are two alternate names for the mountain that only in recent years have been joined together into a single name. "Seongsan" means "fortress mountain"; the mountain is said to resemble a Korean fortress. "Ilchulbong" means "sunrise peak". This latter name has reportedly been used since ancient times, and is derived from a belief that the mountain is one of the best places to view the sunrise on Jeju Island. The mountain previously sometimes went by the name Cheongsan (청산; 靑山; lit. 'green/blue mountain'); this name is reportedly sometimes still used by generally elderly people.

Description In 2021, a study reported that a 600 m (2,000 ft) wide crater from before the formation of Seongsan Ilchulbong now partially overlaps with the mountain site.

Seongsan Ilchulbong was formed around 6,700 years ago, by Surtseyan-type hydrovolcanic activity upon a shallow seabed. The earliest eruption related to the peak occurred around 600 m (2,000 ft) to the east of the current crater. After the eruption stopped, magma could not flow through that spot, which caused magma to later emerge at the location of the peak. Over time, most of the early cones and parts of the later tuff cone were eroded by waves, leaving parts of the internal structure exposed along the cliffs. The mountain was originally disconnected from Jeju Island, but the accumulation of sediment caused the two to connect. The mountain is considered to be geologically interesting and is actively studied by volcanologists. The mountain is 182 m (597 ft) tall and has a diameter of 600 m (2,000 ft). It has a grassy volcanic crater at the top with a smooth, shallow bowl shape. The crater has an area of 2.64 km2 (1.02 mi2) and is around 90 m (300 ft) above sea level. A 2011 study reported that there are 240 taxa of plant species on the mountain.

Tourism

The mountain is a significant tourist attraction. In 2011, it received 2.45 million visitors. In 2022, it received 1,427,941 visitors. The mountain is especially popular for watching sunrises. Tourists can ascend the mountain using a wooden deck staircase. It reportedly takes up to 30 minutes to ascend to the top. It is open from an hour before sunrise until 8 p.m. from November to February and until 9 p.m. from March to October. The mountain offers views of Hallasan, the island Udo, and the ocean. Tourists can also tour the area around the mountain, and take cruises that offer views of the mountain and of Udo. The mountain was designated a Natural Monument of South Korea on July 19, 2000. This status has reportedly aided conservation efforts on the mountain. On July 2, 2007, it was designated a UNESCO Natural World Heritage Site. In October 2010, it was named a Global Geopark Network site.

Seongsan Sunrise Festival The Seongsan Sunrise Festival (성산일출축제) is a multi-day festival held around New Year's Day. A variety of activities and performances are held. Events like talent shows, parades, fireworks shows, and trail walking events have been attested to. In addition to popular music performances, performances like traditional gut Korean shamanic rituals are held. There is a countdown until the sunrise; fishermen reportedly light their boats and sound their whistles when it happens.

History During the Goryeo under Mongol rule period (13th to 14th centuries), ranches for horses were established near the mountain. During the 1910–1945 Japanese colonial period and near the end of World War II, the Imperial Japanese Navy dug caves into the sides of the mountain, where they stashed boats loaded with explosives. These boats were intended to stymie anticipated Allied landings on Jeju; the around 18 caves they dug remain, and are now Registered Cultural Heritages of South Korea. In the 20th century, farmers reportedly grew bamboo in the crater. People raised horses and lived inside the crater before it became an environmentally protected site in the late 20th century.

Gallery

See also World Heritage Sites in South Korea Gimnyeonggul Geomunoreum Lava Tube System Manjanggul

References

Sources Jeon, Yongmun; Ki, Jinseok; Southcott, Darren (2024-06-01). "Korean geoheritage: the volcanic landforms of the Jeju Island UNESCO Global Geopark". Episodes Journal of International Geoscience. 47 (2): 295–310. doi:10.18814/epiiugs/2024/024010. Sohn, Y. K.; Chough, S. K. (1992). "The Ilchulbong tuff cone, Cheju Island, South Korea". Sedimentology. 39 (4): 523–544. doi:10.1111/j.1365-3091.1992.tb02135.x. ISSN 1365-3091.

Additional reading Sohn, Y. K.; Cronin, S. J.; Brenna, M.; Smith, I. E. M.; Nemeth, K.; White, J. D. L.; Murtagh, R. M.; Jeon, Y. M.; Kwon, C. W. (2012-03-01). "Ilchulbong tuff cone, Jeju Island, Korea, revisited: A compound monogenetic volcano involving multiple magma pulses, shifting vents, and discrete eruptive phases". Geological Society of America Bulletin. 124 (3–4): 259–274. doi:10.1130/B30447.1. ISSN 0016-7606.

External links Media related to Seongsan Ilchulbong at Wikimedia Commons

https://www.jeju.go.kr/jejuwnh/heritage/seongsan/intro.htm – Official visitor information (in Korean) Seongsan Sunrise Festival homepage (in Korean) Jeju Volcanic Island and Lava Tubes, UNESCO

Illustrations

Worked examples

Example 1 — a first encounter with Seongsan Ilchulbong

Start with the simplest possible case. Write down what Seongsan Ilchulbong claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In earth science, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to Seongsan Ilchulbong before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about Seongsan Ilchulbong ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of Seongsan Ilchulbong

In research: Seongsan Ilchulbong appears in earth science research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry: Engineering practice reuses Seongsan Ilchulbong in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom: Seongsan Ilchulbong is common in secondary-school and first-year university syllabi. It links to neighbouring topics Mountains of Jeju Province, Tourist attractions in Jeju Province, Tuff cones, so understanding it makes those chapters shorter.
In everyday life: Look for Seongsan Ilchulbong outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.

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How to study Seongsan Ilchulbong in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what Seongsan Ilchulbong means in your own words.
Compare your version with the excerpt and mark what you missed.
Work through the three examples above with pen and paper.
Explain Seongsan Ilchulbong out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Seongsan Ilchulbong in simple terms?

Why does Seongsan Ilchulbong matter?

Because it connects several earth science ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study Seongsan Ilchulbong?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on Seongsan Ilchulbong.