- Info & Contacts
The Global Volcanism Program has no activity reports for Tolmachev Dol.
The Global Volcanism Program has no Weekly Reports available for Tolmachev Dol.
The Global Volcanism Program has no Bulletin Reports available for Tolmachev Dol.
Summary of Holocene eruption dates and Volcanic Explosivity Indices (VEI).
|Start Date||Stop Date||Eruption Certainty||VEI||Evidence||Activity Area or Unit|
|0300 ± 150 years||Unknown||Confirmed||Tephrochronology||NW part of Tolmachev Dol|
|2650 BCE (?)||Unknown||Confirmed||4||Radiocarbon (uncorrected)||Chasha crater, OPtr tephra|
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.
|Late Pleistocene-Holocene cinder cones in the foreground dot the southern part of Tolmachev Dol (Tolmachev Plateau) with conical Opala stratovolcano in the background. Tolmachev Dol is a large volcanic highland NE of Opala volcano that is blanketed with numerous postglacial cinder cones. The cones and associated lava fields cover a broad area around scenic Lake Tolmachev halfway beween Opala and Gorely volcanoes.
Copyrighted photo by Leopold Sulerzhitsky (Holocene Kamchataka volcanoes; http://www.kscnet.ru/ivs/volcanoes/holocene/main/main.htm).
|Chasha ("Chalice") crater filled with a lake is in the middle of the photo. It formed about 4600 years ago and produced about 1 km3 of rhyolitic tephra (marker ash layer OPtr). Chasha crater is located in the northern part of the Tolmachev Dol (Plateau) and surrounded by Holocene basaltic cinder cones. The next lake at the left was dammed by the Chasha eruption products. The most distant water at the left is Tolmacheva Lake; Tolmacheva river valley is between Chasha lake and distant cones at the right.
Copyrighted photo by Philip Kyle (Holocene Kamchataka volcanoes; http://www.kscnet.ru/ivs/volcanoes/holocene/main/main.htm).
A listing of samples from the Smithsonian collections will be available soon.
|Large Eruptions of Tolmachev Dol||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.|