Cite this Report
Hydrothermal explosion kills four people
A hydrothermal explosion around 1430 on 11 February killed four people at a highway construction site, located in a geothermal area along the narrow Azusa-gawa River ~2 km SE of the summit. The Geological Survey of Japan reported that there were at least two explosions from the vent (12 m long and 6 m wide). The first, a large explosion, created a 1,500-m-high plume composed of mud and gas, and caused collapse of the river bank, burying the primary vent. A second explosion scattered mud and gas within 200 m of the vent. JMA staff who surveyed the site on 12 February and 13 March noted that fume rising to a height of 20 m was almost at the boiling point. No explosions have been reported since 12 February.
Information Contacts: JMA.
The Global Volcanism Program has no Weekly Reports available for Yakedake.
Reports are organized chronologically and indexed below by Month/Year (Publication Volume:Number), and include a one-line summary. Click on the index link or scroll down to read the reports.
Cite this Report
Hydrothermal explosion kills four people
A hydrothermal explosion around 1430 on 11 February killed four people at a highway construction site, located in a geothermal area along the narrow Azusa-gawa River ~2 km SE of the summit. The Geological Survey of Japan reported that there were at least two explosions from the vent (12 m long and 6 m wide). The first, a large explosion, created a 1,500-m-high plume composed of mud and gas, and caused collapse of the river bank, burying the primary vent. A second explosion scattered mud and gas within 200 m of the vent. JMA staff who surveyed the site on 12 February and 13 March noted that fume rising to a height of 20 m was almost at the boiling point. No explosions have been reported since 12 February.
Information Contacts: JMA.
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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| Iwo-dake | Yake-dake | ||||
Cones |
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| Feature Name | Feature Type | Elevation | Latitude | Longitude |
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Shiratani-yama
Siratani-yama |
Stratovolcano | 2140 m | ||
| Warudani-yama | Stratovolcano | 2224 m | ||
Craters |
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| Feature Name | Feature Type | Elevation | Latitude | Longitude |
| Junga-ike | Crater | |||
| Kamibori | Crater | |||
| Kurodani | Crater | |||
| Nakao-toge | Crater | |||
| Shimobori | Crater | |||
| Shiramizu | Crater | |||
| Taisho | Crater | |||
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There is data available for 38 Holocene eruptive periods.
| Start Date | Stop Date | Eruption Certainty | VEI | Evidence | Activity Area or Unit |
|---|---|---|---|---|---|
| 1995 Feb 11 | 1995 Feb 11 | Confirmed | 1 | Historical Observations | SE flank (Azusa-gawa) |
| 1962 Jun 17 | 1963 Jun 29 | Confirmed | 2 | Historical Observations | North flank (Kurodani and Nakao-toge) |
| 1939 Jun 4 | 1939 Jun 4 | Confirmed | 2 | Historical Observations | |
| 1935 Sep 11 | 1935 Nov 12 | Confirmed | 2 | Historical Observations | |
| 1932 Feb 6 | 1932 Feb 6 | Confirmed | 2 | Historical Observations | |
| 1931 Mar 26 | 1931 Jun 24 | Confirmed | 2 | Historical Observations | |
| 1930 Mar 13 | 1930 May 11 (?) | Confirmed | 2 | Historical Observations | Inkyo-ko |
| 1929 Apr 17 | 1929 Apr 19 | Confirmed | 2 | Historical Observations | Summit (Inkyo-ko), NW flank (Kurodani) |
| 1927 Dec 15 | 1927 Dec 15 | Confirmed | 2 | Historical Observations | Summit (Inkyo-ko), NW flank (Kurodani) |
| 1927 Jan 23 | 1927 Apr 29 | Confirmed | 2 | Historical Observations | Summit (Inkyo-ko), NW flank (Kurodani) |
| 1924 Nov 16 | 1926 Jan 27 | Confirmed | 2 | Historical Observations | Summit (Inkyo-ko), NW flank (Kurodani) |
| 1923 Jun 26 | 1923 Aug 2 | Confirmed | 2 | Historical Observations | NW flank (Kurodani Crater), Inkyo-ko |
| 1922 Mar 10 | 1922 Mar 19 | Confirmed | 1 | Historical Observations | NW flank (Kurodani Crater), Inkyo-ko |
| 1921 | Unknown | Confirmed | Historical Observations | ||
| 1920 | Unknown | Confirmed | Historical Observations | ||
| 1919 Nov 1 | 1919 Nov 1 | Confirmed | 2 | Historical Observations | NW flank (Kurodani Crater) |
| 1918 | Unknown | Confirmed | 1 | Historical Observations | Taisho crater |
| 1917 | Unknown | Confirmed | 1 | Historical Observations | Taisho Crater |
| 1916 Mar 17 | 1916 Apr 12 (?) | Confirmed | 2 | Historical Observations | Taisho Crater, Inkyo-ko |
| 1915 Jun 6 | 1915 Jul 16 | Confirmed | 2 | Historical Observations | 1911 summit crater, SE flank (Taisho) |
| 1915 Feb | 1915 Feb | Confirmed | 2 | Historical Observations | |
| 1913 Sep 1 (?) | 1914 Jan 13 | Confirmed | 2 | Historical Observations | Inkyo-ko |
| 1912 Feb 11 | 1912 Sep (?) | Confirmed | 2 | Historical Observations | |
| 1911 May 6 | 1911 Aug 23 (?) | Confirmed | 2 | Historical Observations | New summit crater (Inkyo-ko) |
| 1910 Nov 11 | 1910 Nov 30 | Confirmed | 2 | Historical Observations | Summit crater (Shoga-ike) |
| 1907 Dec 8 | 1909 Jun 1 | Confirmed | 2 | Historical Observations | Summit crater (Shoga-ike) |
| 1746 Apr 18 | 1746 Apr 19 | Confirmed | 2 | Historical Observations | Ykd-Tu7 tephra |
| 1585 Dec (?) | Unknown | Confirmed | 3 | Historical Observations | Ykd-Tu6 tephra |
| 1460 (?) | Unknown | Confirmed | 2 | Tephrochronology | Ykd-Tu5 tephra |
| 1440 (?) | Unknown | Confirmed | Tephrochronology | Ykd-Tu4 tephra | |
| 1270 (?) | Unknown | Confirmed | Tephrochronology | Ykd-Tu3 tephra | |
| 0686 | Unknown | Confirmed | 2 | Historical Observations | Ykd-Tu2 tephra |
| 0630 (?) | Unknown | Confirmed | 1 | Tephrochronology | Ykd-Tu1 tephra |
| 0350 BCE (?) | Unknown | Confirmed | 4 | Radiocarbon (corrected) | |
| 0400 BCE (?) | Unknown | Confirmed | Tephrochronology | Ykd-Tl2 tephra | |
| 0850 BCE (?) | Unknown | Confirmed | Tephrochronology | Ykd-Tl1 tephra | |
| 2550 BCE (?) | Unknown | Confirmed | 0 | Tephrochronology | |
| 7450 BCE (?) | Unknown | Confirmed | 0 | Tephrochronology | Akandana-yama |
There is no Deformation History data available for Yakedake.
There is no Emissions History data available for Yakedake.
Yakedake rises above Kamikochi resort in the Northern Japan Alps, seen here from Taishoike pond to its ENE. It contains a 300-m-wide crater at the summit and craters are found on the SE and N flanks. Frequent small-to-moderate phreatic eruptions have occurred during the 20th century from both summit and flank vents. An eruption in 1915 produced a lahar that created Taishoike pond and killed the trees in the foreground.
A lahar during an eruption of Yakedake volcano in 1915 dammed the Azusagawa river to form the Taishoike pond, leaving these standing dead trees. The 1915 eruption began on 6 June from a 1-km-long fracture that extended from the summit down the ESE flank where about 50 craters formed, but the principal activity took place at the upper end.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: Computer Generated Geologic Map of Japan Publisher: Geological Survey of Japan Country: Japan Year: 1990 Series: No 22 Map Type: Geology Scale: 1:2,000,000 |
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Title: Japan, South Korea Publisher: DMA Aerospace Center Country: Japan, S Korea Year: 1989 Series: TPC Map Type: Topographic Scale: 1:500,000 |
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Title: Japan, South Korea Publisher: DMA Aerospace Center Country: Japan, S Korea Year: 1988 Series: ONC Map Type: Topographic Scale: 1:1,000,000 |
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Title: (B) Q Maps of Japan Landforms, Geol, Tect: Central 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: Shirotori Publisher: Geographical Survey Institute of Japan Country: Japan Year: 1985 Map Type: Topographic Scale: 1:50,000 |
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Title: Japan Publisher: DMA Aerospace Center Country: Japan Year: 1985 Series: TPC Map Type: Topographic Scale: 1:500,000 |
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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: Hagiwara Publisher: Geographical Survey Institute of Japan Country: Japan Year: 1984 Map Type: Topographic Scale: 1:50,000 |
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Title: Japan Publisher: DMA Aerospace Center Country: Japan Year: 1983 Series: TPC Map Type: Topographic Scale: 1:500,000 |
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Title: Hakusan Publisher: Geographical Survey Institute of Japan Country: Japan Year: 1982 Map Type: Topographic Scale: 1:50,000 |
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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: Mikkamachi Publisher: Geographical Survey Institute of Japan Country: Japan Year: 1982 Map Type: Topographic Scale: 1:50,000 |
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Title: Central Japan Publisher: Geographical Survey Institute of Japan Country: Japan Year: 1980 Series: CIM 1:1 mil Map Type: Topographic Scale: 1:1,000,000 |
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Title: Central Japan Publisher: Geographical Survey Institute of Japan Country: Japan Year: 1980 Map Type: Topographic Scale: 1:1,000,000 |
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Title: Central Japan Publisher: Geographical Survey Institute of Japan Country: Japan Year: 1980 Map Type: Topographic 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: 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: Distribution Map of Hot Springs in Japan Publisher: Geological Survey of Japan Country: Japan Year: 1975 Series: 1:2,000,000 Map Type: Unknown Scale: 1:2,000,000 |
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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: 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: Central Japan Publisher: Geographical Survey Institute of Japan Country: Japan Year: 1966 Map Type: Topographic Scale: 1:1,000,000 |
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Title: Nagoya Publisher: US Army Map Service Country: Japan Year: 1953 Series: AMS Map Type: Topographic Scale: 1:250,000 |
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Title: Kanazawa Publisher: US Army Map Service Country: Japan Year: 1953 Series: AMS Map Type: Topographic Scale: 1:250,000 |
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Title: Nagoya Publisher: US Army Map Service Country: Japan Year: 1945 Series: AMS Map Type: Road Scale: 1:250,000 |
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Title: Osaka Publisher: US Army Map Service Country: Japan Year: 1945 Series: AMS Map Type: Topographic Scale: 1:1,000,000 |
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Title: Haku-San Publisher: US Army Map Service Country: Japan Year: 1945 Series: AMS Map Type: Topographic Scale: 1:50,000 |
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Title: Kanazawa 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 Yakedake in the Smithsonian's NMNH Department of Mineral Sciences Rock and Ore collection.
| 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 Yakedake. 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 Yakedake. 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. |
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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. |
| Large Eruptions of Yakedake | 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). |
