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The Global Volcanism Program has no activity reports for Snaefellsjökull.
The Global Volcanism Program has no Weekly Reports available for Snaefellsjökull.
The Global Volcanism Program has no Bulletin Reports available for Snaefellsjökull.
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|
|Bardarlaug||Cone||120 m||64° 46' 0" N||23° 41' 0" W|
|Budaklettur||Cone||88 m||64° 48' 0" N||23° 26' 0" W|
|Holaholar||Cone||113 m||64° 47' 0" N||23° 56' 0" W|
|Holatindar||Cone||670 m||64° 47' 41" N||23° 50' 33" W|
|Cone||688 m||64° 47' 8" N||23° 43' 48" W|
|Ljosakrida||Cone||696 m||64° 49' 15" N||23° 50' 45" W|
|Ondverdarnesholar||Shield volcano||100 m||64° 51' 0" N||24° 0' 0" W|
|Cone||135 m||64° 45' 12" N||23° 49' 21" W|
|Raudholar||Cone||180 m||64° 52' 0" N||23° 53' 0" W|
|Saxholar||Cone||104 m||64° 51' 6" N||23° 55' 34" W|
|Sjonarholl||Cone||64° 51' 0" N||23° 51' 0" W|
|Svalthufa||Cone||40 m||64° 44' 0" N||23° 47' 0" W|
|Svortutindar||Cone||819 m||64° 49' 52" N||23° 50' 45" W|
|Toppgig||Cone||64° 48' 0" N||23° 49' 0" W|
There is data available for 10 Holocene eruptive periods.
|Start Date||Stop Date||Eruption Certainty||VEI||Evidence||Activity Area or Unit|
|0200 ± 150 years||Unknown||Confirmed||Radiocarbon (uncorrected)||Tephra layer Sn-1|
|1000 BCE ± 500 years||Unknown||Confirmed||2||Radiocarbon (uncorrected)||NW flank (Raudhólar)|
|2010 BCE ± 100 years||Unknown||Confirmed||Radiocarbon (uncorrected)||Tephra layer Sn-2|
|2270 BCE ± 300 years||Unknown||Confirmed||0||Radiocarbon (uncorrected)||South flank (Thufuhraun)|
|2400 BCE ± 200 years||Unknown||Confirmed||2||Radiocarbon (uncorrected)||NE flank (800 m)|
|2970 BCE ± 300 years||Unknown||Confirmed||0||Radiocarbon (uncorrected)||SE flank (Dagverdarahraun)|
|4050 BCE (?)||Unknown||Confirmed||0||Tephrochronology||West flank (Ondverdarnesholar)|
|4550 BCE ± 1500 years||Unknown||Confirmed||2||Tephrochronology||East of Snaefellsjökull (Budaklettur)|
|6050 BCE ± 1000 years||Unknown||Confirmed||Tephrochronology||Tephra layer Sn-3|
|8460 BCE ± 200 years||Unknown||Confirmed||Radiocarbon (corrected)|
There is no Deformation History data available for Snaefellsjökull.
There is no Emissions History data available for Snaefellsjökull.
|The low Budaklettur scoria cone on the east flank of Snæfellsjökull in western Iceland was the source of the Budahraun lava field, which forms a flat, low-lying peninsula. The eruption occurred sometime between about 5000 and 8000 years ago. Youthful, Holocene lava flows form much of the coastline surrounding Snæfellsjökull volcano.
Photo by Richie Williams, 1981 (U.S. Geological Survey).
|Lysuhöll, Iceland's smallest volcanic system, consists of a chain of small cinder cones and vents along a WNW-ESE line cutting diagonally across the Snæfellsnes Peninsula in the center of the photo. The cones and vents of the Lysuhöll volcanic system, seen here from the ENE, are located between the snow-covered Helgrindur mountains in the foreground and the glacier-covered Snæfellsjökull volcano in the background. The latest eruptions from Lysuhöll occurred during the Holocene.
Photo by Thorvaldur Bragason, Iceland Geodetic Survey (courtesy of Richie Williams, U.S. Geological Survey).
|Ice-clad Snæfellsjökull volcano towers above Breidavík bay at the western tip of the isolated Snæfellsnes Peninsula in western Iceland. Numerous pyroclastic cones dot the flanks of the 1448-m-high stratovolcano, which is the only large central volcano in this part of Iceland. Holocene lava flows extend to the sea over the entire western half of the volcano. One young flow that reached the coast on the eastern flank can be seen at the left side of the photo. The latest dated eruption took place about 1750 years ago; several lava flows may be even younger.
Photo by Richie Williams, 1979 (U.S. Geological Survey).
The following 1 samples associated with this volcano can be found in the Smithsonian's NMNH Department of Mineral Sciences collections, and may be availble for research (contact the Rock and Ore Collections Manager). Catalog number links will open a window with more information.
|Catalog Number||Sample Description||Lava Source||Collection Date|
|NMNH 115623||Olivine Tholeiite||--||--|
|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 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 Snaefellsjökull||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).|