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Ulleungdo

Stratovolcano · South Korea · 984m

Ulreung stratovolcano forms a small 10-km-wide island about 100 km E of the central Korean Peninsula. The island, seen in this NASA Landsat image (with north to the top) is a tourist destination from the Korean mainland. Ulreung was the site of a major explosive eruption at the beginning of the Holocene that produced pyroclastic flows and deposited ash in central Honshu.
Ulreung stratovolcano forms a small 10-km-wide island about 100 km E of the central Korean Peninsula. The island, seen in this NASA Landsat image (with north to the top) is a tourist destination from the Korean mainland. Ulreung was the site of a major explosive eruption at the beginning of the Holocene that produced pyroclastic flows and deposited ash in central Honshu. · Photo: NASA Landsat 7 image (worldwind.arc.nasa.gov) · Wikimedia Commons
Type
Stratovolcano
Country
South Korea
Region
Eastern Asia Volcanic Regions / Central East Asia Volcanic Province
Elevation
984m
Coordinates
37.500, 130.870
Last eruption
-2990
Tectonic setting
Intraplate / Continental crust (> 25 km)
Landform
Composite
Major rock type
Trachyandesite / Basaltic Trachyandesite
Geological summary

Ulleungdo, also known as Ulreungdo, is a 10-km-wide island about 100 km E of the central Korean Peninsula. The trachyandesitic stratovolcano is truncated by the Nari caldera. A major phonolitic explosive eruption at the beginning of the Holocene from Nari caldera produced pyroclastic flows and deposited ash in central Honshu, Japan.

From Wikipedia

Ulleungdo, also spelled Ulreungdo, is a South Korean island 120 kilometres 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). It has a population of 10,426 inhabitants.

Wikipedia · CC BY-SA · Read full article →

Eruption history

Summary (VEI over time)
Click a bar to see individual eruptions
8750 BCE~8551 BCE · 1 eruptions · max VEI 66565 BCE~6367 BCE · 1 eruptions · max VEI ?3189 BCE~2990 BCE · 1 eruptions · max VEI ?8750 BCE7360 BCE5969 BCE4579 BCE3189 BCE

Detailed timeline

  1. 2990 BCE (±40 yrs)VEI ?Geological estimate
    BCE 2990 – Ongoing
  2. 6450 BCEVEI ?Geological estimate
    BCE 6450 – Ongoing
  3. 8750 BCEVEI 6Geological estimate
    BCE 8750 – Ongoing

External links

⚠ For reference only. Not for emergency response.