| Country | Japan |
| Volcanic Region | Northeast Japan Volcanic Arc |
| Landform | Volc Type | Composite | Stratovolcano |
| Last Known Eruption | Unknown - Evidence Uncertain |
| Coordinates | 36.56°N, 139.193°E |
| Elevation | 1,828 m (5,997 ft) |
| Volcano Number | 283130 |
 Google Earth Placemark with Features
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 Cite Volcano Profile
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The Global Volcanism Program has no Weekly Volcanic Activity Reports available for Akagisan.
The Global Volcanism Program has no Bulletin Reports available for Akagisan.
The Global Volcanism Program has no Weekly Reports available for Akagisan.
The Global Volcanism Program has no Bulletin Reports available for Akagisan.
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There is data available for 0 confirmed eruptive period.
[ 1938 Jul 16 (on or before) ] Uncertain Eruption
| Episode 1 | Eruption (Explosive / Effusive) | ||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1938 Jul 16 (on or before) - Unknown | Evidence from Unknown | |||||||||||||||||||||||
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List of 3 Events for Episode 1
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[ 1251 May 18 ] Uncertain Eruption
| Episode 1 | Eruption (Explosive / Effusive) | ||||
|---|---|---|---|---|
| 1251 May 18 - Unknown | Evidence from Unknown | |||
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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| Akagi | ||||
Craters |
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| Feature Name | Feature Type | Elevation | Latitude | Longitude |
| Kono | Crater | 1580 m | ||
Domes |
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| Feature Name | Feature Type | Elevation | Latitude | Longitude |
| Choshichiro-yama
Tyositiro-yama |
Dome | 1580 m | ||
| Jizo-dake
Zizo-dake |
Dome | 1674 m | ||
| Miharashi-yama | Dome | 1440 m | ||
| Suzuga-take | Dome | 1565 m | ||
Akagisan at the northern end of the Kanto Plain has a 3 x 4 km summit caldera that contains lava domes. Lake Ono, seen here from the SW with the summit of the volcano to the upper right, occupies the NE end of the caldera. Most of the activity occurred during the Pleistocene when a series of large Plinian eruptions accompanied growth of a second cone. 
Akagisan volcano contains a lake-filled summit caldera. Kurohinokiyama, across Lake Ono to the NE, is the highest point on the caldera rim of, 350 m above the lake.There are no samples for Akagisan in the Smithsonian's NMNH Department of Mineral Sciences Rock and Ore collection.
| Copernicus Browser | The Copernicus Browser replaced the Sentinel Hub Playground browser in 2023, to provide access to Earth observation archives from the Copernicus Data Space Ecosystem, the main distribution platform for data from the EU Copernicus missions. |
| 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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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. |
| EarthScope Consortium SAGE seismic stations/networks | EarthScope Consortium operates the NSF Geodetic Facility for the Advancement of Geoscience (GAGE) and NSF Seismological Facility for the Advancement of Geoscience (SAGE). The linked map shows 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 Akagisan. 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. |
| Large Eruptions of Akagisan | 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). |
