- Info & Contacts
The Global Volcanism Program has no activity reports for Novarupta.
The Global Volcanism Program has no Weekly Reports available for Novarupta.
The Global Volcanism Program has no Bulletin Reports available for Novarupta.
Summary of Holocene eruption dates and Volcanic Explosivity Indices (VEI).
|Start Date||Stop Date||Eruption Certainty||VEI||Evidence||Activity Area or Unit|
|[ 1950 Jul 5 ± 4 days ]||[ Unknown ]||Discredited|
|[ 1949 May 19 ]||[ Unknown ]||Discredited|
|1912 Jun 6||1912 Oct (?)||Confirmed||6||Historical Observations|
The Global Volcanism Program has no synonyms or subfeatures listed for Novarupta.
|A 65-m-high, 380-m-wide lava dome lies within a circular ejecta ring and caps the 1912 vent of Novarupta volcano. A 60-hour-long eruption beginning on June 6, 1912, the Earth's largest eruption during the 20th century, produced The Valley of Ten Thousand Smokes ash-flow deposit, which forms the flat ground at the right. The face of Falling Mountain, behind Novarupta dome, was sheared off by a 2-km-wide collapse around the Novarupta vent. This view from the NE shows snow-capped Mageik volcano in the background.
Photo by Tom Miller (U.S. Geological Survey, Alaska Volcano Observatory).
|Mount Mageik (left) and steaming Mount Martin (distant right) tower above the flat-bottomed floor of the Valley of Ten Thousand Smokes (VTTS). The VTTS was formed by ash flows during the 1912 eruption of Novarupta volcano, the Earth's largest eruption of the 20th century. Glacier-clad Mount Mageik has a broad summit capped by 4 knobs, each of which is a spatter and lava-flow vent.
Photo by Game McGimsey (U.S. Geological Survey, Alaska Volcano Observatory).
The following 14 samples associated with this volcano can be found in the Smithsonian's NMNH Department of Mineral Sciences collections. Catalog number links will open a window with more information.
|Catalog Number||Sample Description|
|NMNH 116660-1||Andesite-dacite pumice|
|NMNH 116660-2||Andesite-dacite pumice|
|NMNH 116660-3||Andesite pumice|
|NMNH 116660-5||Rhyolite pumice|
|NMNH 117233-87||Tuff with pumice and lapilli|
|NMNH 117259-20||Fumarole deposit|
|NMNH 117259-21||Fumarole deposit|
|NMNH 117259-22||Fumarole deposit|
|NMNH 117259-23||Fumarole deposit|
|NMNH 117259-24||Fumarole deposit|
|Large Eruptions of Novarupta||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).|
|WOVOdat||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.|
|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).|
|MODVOLC - HIGP MODIS Thermal Alert System||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.|
|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.|