- Info & Contacts
The Global Volcanism Program has no activity reports for Alney-Chashakondzha.
The Global Volcanism Program has no Weekly Reports available for Alney-Chashakondzha.
The Global Volcanism Program has no Bulletin Reports available for Alney-Chashakondzha.
Summary of Holocene eruption dates and Volcanic Explosivity Indices (VEI).
|Start Date||Stop Date||Eruption Certainty||VEI||Evidence||Activity Area or Unit|
|1600 (?)||Unknown||Confirmed||Radiocarbon (uncorrected)||Alney volcano|
|0650 BCE ± 75 years||Unknown||Confirmed||3||Radiocarbon (uncorrected)||East flank of Alney (Kireunsky)|
|0660 BCE ± 75 years||Unknown||Confirmed||3||Radiocarbon (uncorrected)||E of Chashakondzha (Levaya Belaya)|
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|
|Stratovolcano||2598 m||56° 42' 0" N||159° 39' 0" E|
|Chashakondzha||Stratovolcano||2526 m||56° 37' 0" N||159° 39' 0" E|
|Kireunsky||Pyroclastic cone||1400 m||56° 41' 0" N||159° 44' 0" E|
|The glacier-capped Alney-Chashakondzha complex, its summit partially obscured by clouds in this NASA Landsat image (with north to the top), is one of the largest volcanoes of the Sredinny Range. It consists of two large Pleistocene andesitic stratovolcanoes, 2598-m-high Alney on the north and 2526-m-high Chashakondzha on the south, both capped with andesitic lava domes. The Kireunsky lava flow from a vent on the eastern side of the complex was erupted about 2600 years ago.
NASA Landsat7 image (worldwind.arc.nasa.gov)
|Glacial canyons descend from the western side of Alney volcano, which along with Chashakondzha volcano, forms one of the largest volcanic complexes of the Sredinny Range. Alney is one of the few large stratovolcanoes in the Sredinny Range known to have been active throughout the Holocene, with more than 30 documented pyroclastic deposits. Cinder cones on the east flanks of Alney and Chashakondzha volcanoes also erupted during the Holocene.
Copyrighted photo by Adam Kirilenko, 2003.
|The Kireunsky lava flow was erupted from a vent on the eastern side of the Alney-Chashakondzha volcanic massif (background) about 2600 years ago. The lava flow was erupted from a vent east of Alney volcano on the divide between the Kirevna (far right) and Pravaya Kirevna (left foreground) rivers. Tephra from the Kireunsky eruption almost immediately overlies a tephra from a cinder cone to the south.
Copyrighted photo by Adam Kirilenko, 2002.
|The Levaya Belaya lava flow was erupted from a cone 5 km ENE of the summit of Chashakondzha volcano. Flow levees are visible in the middle of the photo, and the Levaya Belaya River has cut a channel along the northern margin of the flow. The Levaya Belaya flow was radiocarbon dated at about 2610 years ago, and tephra from this eruption almost immediately underlies a tephra from another nearby cone 5.5 km east of the summit of Alney volcano.
Copyrighted photo by Adam Kirilenko, 2002.
A listing of samples from the Smithsonian collections will be available soon.
|Large Eruptions of Alney-Chashakondzha||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.|