- Info & Contacts
The Global Volcanism Program has no activity reports for Southern EPR-Segment I.
The Global Volcanism Program has no Weekly Reports available for Southern EPR-Segment I.
The Global Volcanism Program has no Bulletin Reports available for Southern EPR-Segment I.
The Global Volcanism Program has no synonyms or subfeatures listed for Southern EPR-Segment I.
There is data available for 3 Holocene eruptive periods.
|Start Date||Stop Date||Eruption Certainty||VEI||Evidence||Activity Area or Unit|
|1915 ± 40 years||Unknown||Confirmed||0||Magnetism||Animal Farm lava flow|
|1860 (?)||Unknown||Confirmed||0||Magnetism||Southern South Hump lava flow|
|1620 (?)||Unknown||Confirmed||0||Magnetism||Northern South Hump lava flow|
There is no Deformation History data available for Southern EPR-Segment I.
There is no Emissions History data available for Southern EPR-Segment I.
|"Black smoker" vents (low chlorinity fluids, 374 deg C) were photographed at the "RM28" site at 18 deg 26 min S on Segment I of the Southern East Pacific Rise in November 1994 from the Japanese submersible Shinkai 6500. The narrow axial crest of Segment I of the Southern East Pacific Rise in some places is less than 50 m wide. The largest lava flow field in this EPR segment is the Animal Farm flow, named after a thriving low-temperature hydrothermal site discovered during a submersible expedition in 1993.
Image courtesy of NOAA Vents Program, 1994 (www.pmel.noaa.gov/vents/chemistry/images/).
There are no samples for Southern EPR-Segment I in the Smithsonian's NMNH Department of Mineral Sciences Rock and Ore collection.
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 Southern EPR-Segment I||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).|
|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.|
|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).|