- Info & Contacts
The Global Volcanism Program has no activity reports for Vakinankaratra.
The Global Volcanism Program has no Weekly Reports available for Vakinankaratra.
The Global Volcanism Program has no Bulletin Reports available for Vakinankaratra.
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.
|Feature Name||Feature Type||Elevation||Latitude||Longitude|
|Amboniloha||Cone||1683 m||19° 50' 41" S||46° 59' 14" E|
|Ampasimihaiky||Cone||1719 m||19° 50' 4" S||46° 52' 55" E|
|Iavoko||Cone||1808 m||19° 50' 58" S||46° 53' 25" E|
|Ifasina||Cone||2149 m||19° 45' 54" S||46° 56' 26" E|
|Itavo||Cone||1839 m||19° 55' 8" S||46° 57' 42" E|
|Ivohitra||Cone||1658 m||19° 52' 45" S||47° 0' 30" E|
|Tramponga||Cone||1853 m||19° 47' 28" S||46° 54' 31" E|
|Tritriva||Cone||1861 m||19° 55' 45" S||46° 55' 21" E|
|Feature Name||Feature Type||Elevation||Latitude||Longitude|
|Andraikiba||Crater||1517 m||19° 52' 25" S||46° 58' 10" E|
|Tritrivakely||Crater||1767 m||19° 46' 41" S||46° 55' 11" E|
The Global Volcanism Program is not aware of any Holocene eruptions from Vakinankaratra. If this volcano has had large eruptions (VEI >= 4) prior to 10,000 years ago, information might be found on the Vakinankaratra page in the LaMEVE (Large Magnitude Explosive Volcanic Eruptions) database, a part of the Volcano Global Risk Identification and Analysis Project (VOGRIPA).
There is no Deformation History data available for Vakinankaratra.
There is no Emissions History data available for Vakinankaratra.
|The Ankaratra volcanic field in central Madagascar consists of trachytic lava domes, fissure vents, basanitic cinder cones, and maars. The volcanic field is one of the largest on the island and covers a 100-km-long area in central Madagascar. Hot springs occur at Ranomafana. North is to the top in this NASA Landsat image.
NASA Landsat7 image (worldwind.arc.nasa.gov)
The Global Volcanism Program has no maps available for Vakinankaratra.
There are no samples for Vakinankaratra in the Smithsonian's NMNH Department of Mineral Sciences Rock and Ore collection.
|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.|
|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 Vakinankaratra. 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 Vakinankaratra. 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.|
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 Vakinankaratra||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).|