Photo of this volcano
Google Earth icon
Google Earth Placemark
  • South Korea
  • Korea
  • Shield
  • 1007 CE
  • Country
  • Subregion Name
  • Primary Volcano Type
  • Last Known Eruption
  • 33.37°N
  • 126.53°E

  • 1950 m
    6396 ft

  • 306040
  • Latitude
  • Longitude

  • Summit

  • Volcano

There are no activity reports for Halla.

 Available Weekly Reports

There are no Weekly Reports available for Halla.

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

Start Date Stop Date Eruption Certainty VEI Evidence Activity Area or Unit
1007 Unknown Confirmed   Historical Observations
1002 Unknown Confirmed   Historical Observations
2050 BCE ± 200 years Unknown Confirmed   Radiocarbon (uncorrected) SW flank (Songaksan tuff ring)
2830 BCE ± 50 years Unknown Confirmed   Radiocarbon (uncorrected) NE flank (Ilchulbong tuff cone)

The following references are the sources used for data regarding this volcano. References are linked directly to our volcano data file. Discussion of another volcano or eruption (sometimes far from the one that is the subject of the manuscript) may produce a citation that is not at all apparent from the title. Additional discussion of data sources can be found under Volcano Data Criteria.

Chough S K, Sohn Y K, 1990. Depostional mechanics and sequences of base surges, Songaksan tuff ring, Cheju Island, Korea. Sedimentology, 37: 1115-1135.

IAVCEI, 1973-80. Post-Miocene Volcanoes of the World. IAVCEI Data Sheets, Rome: Internatl Assoc Volc Chemistry Earth's Interior..

Lee M W, 1982. Petrology and geochemistry of Jeju volcanic island, Korea. Sci Rpt Tohoku Univ, Ser 3, 15: 177-256.

Sohn Y K, 1996. Hydrovolcanic processes forming basaltic tuff rings and cones on Cheju Island, Korea. Geol Soc Amer Bull, 108: 1199-1211.

Sohn Y K, Chough S K, 1989. Depositional processes of the Suwolbong tuff ring, Cheju Island (Korea). Sedimentology, 36: 837-855.

Sohn Y K, Park J B, Khim B K, Park K H, Koh G W , 2003. Stratigraphy, petrochemistry and Quaternary depositional record of the Songaksan tuff ring, Jeju Island, Korea. J Volc Geotherm Res, 119: 1-20.

Sohn Y K, Park K H, 2005. Composite tuff ring/cone complexes in Jeju Island, Korea: possible consequences of substrate collapse and vent migration. J Volc Geotherm Res, 141: 157-175.

Tomita T, 1969. Volcanic geology of the Cenozoic alkaline petrographic province of eastern Asia. In: Ogura T (ed) {Geology and Mineral Resources of the Far East}, Tokyo: Univ Tokyo Press, p 139-179.

The massive Halla shield volcano forms much of the 40 x 80 km Cheju (Jeju) Island, which lies 90 km south of the Korean Peninsula. Eruptions during the Pliocene and Pleistocene built a lava plateau above the roughly 100-m-deep continental shelf on which the basaltic-to-trachytic Halla shield volcano was constructed. A 400-m-wide crater truncates the 1950-m-high summit. About 360 late-Pleistocene and Holocene basaltic parasitic cones dotting the flanks of the low-angle volcano were erupted primarily along the long axis of the ENE-WSW-trending island. Most of these are scoria cones, but about 20 along the coast of the island or offshore are Pleistocene-to-Holocene tuff rings and tuff cones, and lava domes also occur. Flank eruptions continued into historical time, with the final two taking place during the 11th century.