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2022 Eruption of Alaid Volcano (Russia, Atlasov Island).

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Title: 2022 Eruption of Alaid Volcano (Russia, Atlasov Island).
Authors: Nuzhdaev, A. A.1 (AUTHOR) nuzhdaev@gmail.com, Bolshakov, I. E.1,2 (AUTHOR), Davydova, V. O.1,2 (AUTHOR), Kuznetsov, R. A.1 (AUTHOR), Anikin, L. P.1 (AUTHOR), Zhitova, E. S.1 (AUTHOR), Samarkina, N. K.1 (AUTHOR), Kudryashova, K. A.1,3 (AUTHOR), Matveev, A. N.1 (AUTHOR)
Source: Journal of Volcanology & Seismology. Jun2026, Vol. 20 Issue 3, p237-246. 10p.
Subject Terms: *Volcanic eruptions, *Lava flows, *Lahars, *Mafic rocks, *Thermography, *Volcanic gases
Geographic Terms: Russia
Abstract: This paper presents the results of a comprehensive study of the 2022 eruption of Alaid volcano, which occurred from September 15 to December 1, 2022 the work is based on field observations conducted in 2023 and 2025 using unmanned aerial vehicles (including those equipped with thermal imagers), as well as on laboratory studies of the petrographic and geochemical composition of the eruption products. It was established that as a result of the eruption, the volcano's crater was completely filled by a lava flow, with a volume estimated at no less than 0.04 km3 and a thickness exceeding 20 m in the near-crater part. A new scoria cone, 350–370 m in diameter and at least 60 m high, composed of tephra, formed in the southern part of the crater. The eruption products are homogeneous high-alumina trachybasalts with a high-potassium signature. A comparison of the composition of the 2022 eruption rocks with products from previous historical eruptions was carried out, thereby refining existing geochemical trends. Thermal imaging surveys, as well as direct temperature measurements, recorded a significant decrease in temperature in the crater zone from >550°C in 2023 to 300°C in 2025, with fumarolic activity persisting locally. The lahar depositional cone in the Cape Devyatka area was studied, where stabilization of the coastline is currently observed. [ABSTRACT FROM AUTHOR]
Database: Energy & Power Source
FullText Text:
  Availability: 0
Header DbId: enr
DbLabel: Energy & Power Source
An: 193627792
AccessLevel: 6
PubType: Academic Journal
PubTypeId: academicJournal
PreciseRelevancyScore: 0
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  Data: 2022 Eruption of Alaid Volcano (Russia, Atlasov Island).
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  Data: <searchLink fieldCode="JN" term="%22Journal+of+Volcanology+%26+Seismology%22">Journal of Volcanology & Seismology</searchLink>. Jun2026, Vol. 20 Issue 3, p237-246. 10p.
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  Data: *<searchLink fieldCode="DE" term="%22Volcanic+eruptions%22">Volcanic eruptions</searchLink><br />*<searchLink fieldCode="DE" term="%22Lava+flows%22">Lava flows</searchLink><br />*<searchLink fieldCode="DE" term="%22Lahars%22">Lahars</searchLink><br />*<searchLink fieldCode="DE" term="%22Mafic+rocks%22">Mafic rocks</searchLink><br />*<searchLink fieldCode="DE" term="%22Thermography%22">Thermography</searchLink><br />*<searchLink fieldCode="DE" term="%22Volcanic+gases%22">Volcanic gases</searchLink>
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  Data: <searchLink fieldCode="DE" term="%22Russia%22">Russia</searchLink>
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  Data: This paper presents the results of a comprehensive study of the 2022 eruption of Alaid volcano, which occurred from September 15 to December 1, 2022 the work is based on field observations conducted in 2023 and 2025 using unmanned aerial vehicles (including those equipped with thermal imagers), as well as on laboratory studies of the petrographic and geochemical composition of the eruption products. It was established that as a result of the eruption, the volcano's crater was completely filled by a lava flow, with a volume estimated at no less than 0.04 km3 and a thickness exceeding 20 m in the near-crater part. A new scoria cone, 350–370 m in diameter and at least 60 m high, composed of tephra, formed in the southern part of the crater. The eruption products are homogeneous high-alumina trachybasalts with a high-potassium signature. A comparison of the composition of the 2022 eruption rocks with products from previous historical eruptions was carried out, thereby refining existing geochemical trends. Thermal imaging surveys, as well as direct temperature measurements, recorded a significant decrease in temperature in the crater zone from >550°C in 2023 to 300°C in 2025, with fumarolic activity persisting locally. The lahar depositional cone in the Cape Devyatka area was studied, where stabilization of the coastline is currently observed. [ABSTRACT FROM AUTHOR]
PLink https://search.ebscohost.com/login.aspx?direct=true&site=eds-live&db=enr&AN=193627792
RecordInfo BibRecord:
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      – Type: doi
        Value: 10.1134/S0742046326700144
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      – Code: eng
        Text: English
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      Pagination:
        PageCount: 10
        StartPage: 237
    Subjects:
      – SubjectFull: Volcanic eruptions
        Type: general
      – SubjectFull: Lava flows
        Type: general
      – SubjectFull: Lahars
        Type: general
      – SubjectFull: Mafic rocks
        Type: general
      – SubjectFull: Thermography
        Type: general
      – SubjectFull: Volcanic gases
        Type: general
      – SubjectFull: Russia
        Type: general
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      – TitleFull: 2022 Eruption of Alaid Volcano (Russia, Atlasov Island).
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            – D: 01
              M: 06
              Text: Jun2026
              Type: published
              Y: 2026
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