The Global Volcanism Program has no activity reports for Halla.
The Global Volcanism Program has no Weekly Reports available for Halla.
The Global Volcanism Program has no Bulletin Reports available for Halla.
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.
Synonyms |
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| Cheju-do | Jeju | ||||
Cones |
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| Feature Name | Feature Type | Elevation | Latitude | Longitude |
| Dangsanbong | Tuff cone | 148 m | ||
| Dansan | Tuff cone | |||
| Guduack | Cone | |||
| Huckack | Cone | |||
| Ilchulbong | Tuff cone | 180 m | ||
| Jueockack | Cone | |||
| Sangumburi | Cone | 308 m | 33° 26' 0" N | 126° 42' 0" E |
| Soengpanack | Vent | |||
| Songaksan | Tuff ring | 104 m | 33° 12' 0" N | 126° 22' 30" E |
| Suwolbong | Tuff ring | 78 m | 33° 17' 0" N | 126° 10' 0" E |
| Udo | Tuff cone | 132 m | ||
| Yongmeori | Tuff ring | 33° 14' 0" N | 126° 19' 0" E | |
Craters |
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| Feature Name | Feature Type | Elevation | Latitude | Longitude |
| Backlockdam | Crater | |||
Domes |
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| Feature Name | Feature Type | Elevation | Latitude | Longitude |
| Hodo | Dome | |||
| Rimdo | Dome | |||
| Sanbangsan | Dome | 395 m | 33° 14' 0" N | 126° 19' 0" E |
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There is data available for 4 confirmed Holocene eruptive periods.
1007 Confirmed Eruption
| Episode 1 | Eruption Episode | ||||||||||||||||||||
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| 1007 - Unknown | Evidence from Observations: Reported | |||||||||||||||||||
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List of 2 Events for Episode 1
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1002 Confirmed Eruption
| Episode 1 | Eruption Episode | ||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1002 - Unknown | Evidence from Observations: Reported | |||||||||||||||||||
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List of 2 Events for Episode 1
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2050 BCE ± 200 years Confirmed Eruption
| Episode 1 | Eruption Episode | SW flank (Songaksan tuff ring) | ||||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2050 BCE ± 200 years - Unknown | Evidence from Isotopic: 14C (uncalibrated) | ||||||||||||||||||||||||||||||||||||||||||||
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List of 7 Events for Episode 1 at SW flank (Songaksan tuff ring)
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2830 BCE ± 50 years Confirmed Eruption
| Episode 1 | Eruption Episode | NE flank (Ilchulbong tuff cone) | ||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2830 BCE ± 50 years - Unknown | Evidence from Isotopic: 14C (uncalibrated) | ||||||||||||||||||||||||||||||||||
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List of 5 Events for Episode 1 at NE flank (Ilchulbong tuff cone)
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There is no Deformation History data available for Halla.
There is no Emissions History data available for Halla.
A cluster of scoria cones on the SW rift of Halla shield volcano is part of more than 360 flank cones that were erupted during the third and last stage of activity. Most of the cones were built along the SW-NE-trending rift zone that forms the axis of the island. The basaltic scoria cones are typically 150-200 m in height and are relatively uneroded.
A waterfall plunging over a trachytic lava flow is a popular tourist destination on Cheju Island. An extensive lava plateau underlies the Halla shield volcano and extends to the coast of the 40 x 80 km island. The volcano dominates the center of the island and has been active from the Pleistocene until historical time.
The massive Halla shield volcano, seen here from the south, forms much of the 40 x 80 km Cheju Island, which lies 90 km S of the Korean Peninsula. More than 360 late-Pleistocene and Holocene basaltic cones on the flanks of the low-angle volcano were erupted primarily along the long axis of the NE-SW-trending island. Most of these are scoria cones, but about 10 along the coast are Pleistocene tuff rings and tuff cones. Flank eruptions continued into historical time, with the final two taking place during the 11th century.
Prominent columnar jointing is visible on the steep sides of a trachytic lava dome on the southern coast of Cheju Island. A cluster of trachytic lava domes were erupted near the end of the second stage of activity of Halla, during which the shield volcano was formed in the center of the island.
Snow-capped Halla shield volcano is seen here from the north, near Cheju city, the largest on Cheju Island. Voluminous lava flows and an underlying lava plateau form the entire 40 x 80 km island. The volcano is capped by the 400-m-wide Backlockdam summit crater and its flanks contain hundreds of cones, some of which form small offshore islands.The maps shown below have been scanned from the GVP map archives and include the volcano on this page. Clicking on the small images will load the full 300 dpi map. Very small-scale maps (such as world maps) are not included. The maps database originated over 30 years ago, but was only recently updated and connected to our main database. We welcome users to tell us if they see incorrect information or other problems with the maps; please use the Contact GVP link at the bottom of the page to send us email.
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Title: (C) Q Maps of Japan Landforms, Geol, Tect: SWest Publisher: Univ of Tokyo Press & Japan Association for Quaternary Research Country: Japan Year: 1987 Map Type: Geology Scale: 1:1,000,000 |
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Title: China, Japan, North Korea, South Korea Publisher: DMA Aerospace Center Country: China Year: 1984 Series: ONC Map Type: Topographic Scale: 1:1,000,000 |
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Title: Historical Japan Publisher: National Geographic Society Country: Japan Year: 1984 Series: National Geographic Map Type: Geographic Scale: 1:2,982,000 |
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Title: Geol Map of Japan/ Geol Atlas Publisher: Geol Survey of Japan Country: Japan Year: 1982 Map Type: Geology Scale: 1:1,000,000 |
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Title: Geological Map of Japan Publisher: Geological Survey of Japan Country: Japan Year: 1978 Map Type: Geology Scale: 1:1,000,000 |
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Title: (Japanese) Geol map of Japan Publisher: Geographical Survey Institute of Japan Country: Japan Year: 1974 Series: from Natl Atlas Japan Map Type: Geology Scale: 1:2,500,000 |
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Title: Jeju Publisher: Geological and Mineral Institute of Korea Country: Korea Year: 1973 Map Type: Geology Scale: 1:250,000 |
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Title: Landform Classification Publisher: Geographical Survey Institute of Japan Country: Japan Year: 1972 Series: from Natl Atlas Japan Map Type: Unknown (Land) Scale: 1:2,500,000 |
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Title: Land Use Publisher: Geographical Survey Institute of Japan Country: Japan Year: 1972 Series: from Natl Atlas Japan Map Type: Unknown (Land) Scale: 1:2,500,000 |
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Title: Population Distribution Publisher: Geographical Survey Institute of Japan Country: Japan Year: 1972 Series: from Natl Atlas Japan Map Type: Unknown Scale: 1:2,500,000 |
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Title: River Systems Publisher: Geographical Survey Institute of Japan Country: Japan Year: 1972 Series: from Natl Atlas Japan Map Type: Unknown Scale: 1:2,500,000 |
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Title: Cheju-Do Joint Operations Graphic Publisher: US Army Topographic Command Country: Korea Year: 1969 Series: UATC Map Type: Topographic Scale: 1:250,000 |
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Title: Cheju-Do Publisher: US Army Map Service Country: Korea Year: 1944 Series: AMS Map Type: Topographic Scale: 1:250,000 |
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Title: Nagasaki Publisher: US Army Map Service Country: Japan Year: 1944 Series: AMS Map Type: Topographic Scale: 1:1,000,000 |
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There are no samples for Halla in the Smithsonian's NMNH Department of Mineral Sciences Rock and Ore collection.
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WOVOdat
Single Volcano View Temporal Evolution of Unrest Side by Side Volcanoes |
WOVOdat is a database of volcanic unrest; instrumentally and visually recorded changes in seismicity, ground deformation, gas emission, and other parameters from their normal baselines. It is sponsored by the World Organization of Volcano Observatories (WOVO) and presently hosted at the Earth Observatory of Singapore.
GVMID Data on Volcano Monitoring Infrastructure The Global Volcano Monitoring Infrastructure Database GVMID, is aimed at documenting and improving capabilities of volcano monitoring from the ground and space. GVMID should provide a snapshot and baseline view of the techniques and instrumentation that are in place at various volcanoes, which can be use by volcano observatories as reference to setup new monitoring system or improving networks at a specific volcano. These data will allow identification of what monitoring gaps exist, which can be then targeted by remote sensing infrastructure and future instrument deployments. |
| Volcanic Hazard Maps | The IAVCEI Commission on Volcanic Hazards and Risk has a Volcanic Hazard Maps database designed to serve as a resource for hazard mappers (or other interested parties) to explore how common issues in hazard map development have been addressed at different volcanoes, in different countries, for different hazards, and for different intended audiences. In addition to the comprehensive, searchable Volcanic Hazard Maps Database, this website contains information about diversity of volcanic hazard maps, illustrated using examples from the database. This site is for educational purposes related to volcanic hazard maps. Hazard maps found on this website should not be used for emergency purposes. For the most recent, official hazard map for a particular volcano, please seek out the proper institutional authorities on the matter. |
| MIROVA | Middle InfraRed Observation of Volcanic Activity (MIROVA) is a near real time volcanic hot-spot detection system based on the analysis of MODIS (Moderate Resolution Imaging Spectroradiometer) data. In particular, MIROVA uses the Middle InfraRed Radiation (MIR), measured over target volcanoes, in order to detect, locate and measure the heat radiation sourced from volcanic activity. |
| MODVOLC Thermal Alerts | Using infrared satellite Moderate Resolution Imaging Spectroradiometer (MODIS) data, scientists at the Hawai'i Institute of Geophysics and Planetology, University of Hawai'i, developed an automated system called MODVOLC to map thermal hot-spots in near real time. For each MODIS image, the algorithm automatically scans each 1 km pixel within it to check for high-temperature hot-spots. When one is found the date, time, location, and intensity are recorded. MODIS looks at every square km of the Earth every 48 hours, once during the day and once during the night, and the presence of two MODIS sensors in space allows at least four hot-spot observations every two days. Each day updated global maps are compiled to display the locations of all hot spots detected in the previous 24 hours. There is a drop-down list with volcano names which allow users to 'zoom-in' and examine the distribution of hot-spots at a variety of spatial scales. |
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Sentinel Hub Playground
Sentinel Hub EO Browser |
The Sentinel Hub Playground provides a quick look at any Sentinel-2 image in any combination of the bands and enhanced with image effects; Landsat 8, DEM and MODIS are also available. Sentinel Hub is an engine for processing of petabytes of satellite data. It is opening the doors for machine learning and helping hundreds of application developers worldwide. It makes Sentinel, Landsat, and other Earth observation imagery easily accessible for browsing, visualization and analysis. Sentinel Hub is operated by Sinergise |
| IRIS seismic stations/networks | Incorporated Research Institutions for Seismology (IRIS) Data Services map showing the location of seismic stations from all available networks (permanent or temporary) within a radius of 0.18° (about 20 km at mid-latitudes) from the given location of Halla. Users can customize a variety of filters and options in the left panel. Note that if there are no stations are known the map will default to show the entire world with a "No data matched request" error notice. |
| UNAVCO GPS/GNSS stations | Geodetic Data Services map from UNAVCO showing the location of GPS/GNSS stations from all available networks (permanent or temporary) within a radius of 20 km from the given location of Halla. Users can customize the data search based on station or network names, location, and time window. Requires Adobe Flash Player. |
| DECADE Data | The DECADE portal, still in the developmental stage, serves as an example of the proposed interoperability between The Smithsonian Institution's Global Volcanism Program, the Mapping Gas Emissions (MaGa) Database, and the EarthChem Geochemical Portal. The Deep Earth Carbon Degassing (DECADE) initiative seeks to use new and established technologies to determine accurate global fluxes of volcanic CO2 to the atmosphere, but installing CO2 monitoring networks on 20 of the world's 150 most actively degassing volcanoes. The group uses related laboratory-based studies (direct gas sampling and analysis, melt inclusions) to provide new data for direct degassing of deep earth carbon to the atmosphere. |
| Large Eruptions of Halla | Information about large Quaternary eruptions (VEI >= 4) is cataloged in the Large Magnitude Explosive Volcanic Eruptions (LaMEVE) database of the Volcano Global Risk Identification and Analysis Project (VOGRIPA). |
| EarthChem | EarthChem develops and maintains databases, software, and services that support the preservation, discovery, access and analysis of geochemical data, and facilitate their integration with the broad array of other available earth science parameters. EarthChem is operated by a joint team of disciplinary scientists, data scientists, data managers and information technology developers who are part of the NSF-funded data facility Integrated Earth Data Applications (IEDA). IEDA is a collaborative effort of EarthChem and the Marine Geoscience Data System (MGDS). |
