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Ulleungdo 울릉도

About

Ulleungdo (Korean: 울릉도; pronounced [uɭːɯŋdo]), also spelled Ulreungdo, is a South Korean island 120 kilometres (65 nmi; 75 mi) east of the Korean Peninsula in the Sea of Japan. It was formerly known as Dagelet Island or Argonaut Island in Europe. 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 metres (3,228 ft) at Seonginbong Peak. The island is 9.5 kilometres (6 mi) in length and ten kilometres (6 mi) in width; it has an area of 72.86 km2 (28.13 sq mi).

Description via Wikipedia (lead extract) · name cross-verified Wikidata + Wikipedia.

Verified facts

Ulleungdo (울릉도) — verified Korean island (섬). In Ulleung County.

Details

• Location: Sea of Japan
• Country: South Korea
• Distance from Korean Peninsula: 120 kilometres
• Maximum Elevation: 984 metres
• Area: 72.86 km2
• Population: 약 9,000명
• Type: 화산섬
• Rank by Size: 9번째

Location

37.50111, 130.85639 · View on map →

Q&A — what agents ask

Cross-checked by 2 source(s)

• Wikidata — structured open knowledge base · view ↗
• Wikipedia — encyclopedic article · view ↗

Verification history

Verified & tracked since 2026-08-15 · 91 verified snapshots.

Append-only, timestamped — the record of WHEN a fact changed, which a latecomer cannot backfill. Full feed: /changes.json · machine-readable: get_history("island:ulleungdo").

Verified badge

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Nearby verified spots

• Dokdo Museum · 4.0 km
• Ttanbangu · 6.1 km
• Gwaneumdo · 7.4 km

Distances from verified coordinates (Wikidata P625), great-circle.