Ulreung

Photo of this volcano
  • Country
  • Volcanic Region
  • Primary Volcano Type
  • Last Known Eruption
  • 37.5°N
  • 130.87°E

  • 984 m
    3228 ft

  • 306030
  • Latitude
  • Longitude

  • Summit
    Elevation

  • Volcano
    Number

The Global Volcanism Program has no activity reports for Ulreung.

The Global Volcanism Program has no Weekly Reports available for Ulreung.

The Global Volcanism Program has no Bulletin Reports available for Ulreung.

Eruptive History


Summary of Holocene eruption dates and Volcanic Explosivity Indices (VEI).


Start Date Stop Date Eruption Certainty VEI Evidence Activity Area or Unit
2990 BCE ± 40 years Unknown Confirmed   Radiocarbon (uncorrected) U-2 tephra
6450 BCE (?) Unknown Confirmed   Radiocarbon (corrected) U-3 tephra
8750 BCE (?) Unknown Confirmed 6 Radiocarbon (corrected) Ulreungdo-Oki tephra layer; U-4

This compilation of synonyms and subsidiary features may not be comprehensive. Features are organized into four major categories: Cones, Craters, Domes, and Thermal Features. Synonyms of features appear indented below the primary name. In some cases additional feature type, elevation, or location details are provided.

Photo Gallery


Ulreung volcano, also known as Ullung, forms a small 10-km-wide island in the Sea of Japan about 100 km east of the coast 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. The 984-m-high stratovolcano is truncated by a caldera. Ulreung was the site of a major explosive eruption at the beginning of the Holocene that produced pyroclastic flows and deposited ash across the Sea of Japan in central Honshu.

NASA Landsat7 image (worldwind.arc.nasa.gov)
See title for photo information.

Smithsonian Sample Collections Database


There are no samples for Ulreung in the Smithsonian's NMNH Department of Mineral Sciences Rock and Ore collection.

Affiliated Sites