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Bulletin Volcanologique

, Volume 44, Issue 1, pp 1–10 | Cite as

The 1972–1974 eruption of klyuchevskoy volcano, Kamchatka

  • B. V. Ivanov
  • V. I. Gorelchik
  • V. N. Andreev
  • A. M. Maksimov
  • V. V. Stepanov
  • A. M. Chirkov
Article

Abstract

A new Klyuchevskoy volcano eruptive cycle encompasses terminal (March 30, 1972 to August 23, 1974) and lateral (August 23, 1974 to December, 1974) eruption stages. The terminal eruption stage resulted in lava flows and parasitic cones that formed on the south-western flank of the volcano.

Eruption products are moderately alkalic high-alumina olivine-bearing andesite-basalts. The terminal eruption stage was accompanied by volcanic earthquakes and volcanic tremor. The lateral eruption was accompanied by explosive earthquakes. Volcanic tremor was the most useful prognostic sign indicating the onset of the lateral eruption. Eruptive mechanisms are discussed.

Keywords

Lava Flow Focal Depth Earthquake Swarm Summit Crater Volcanic Tremor 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Intern. Association of Volcanology and Chemistry of the Earth’s Interior 1981

Authors and Affiliations

  • B. V. Ivanov
    • 1
  • V. I. Gorelchik
    • 1
  • V. N. Andreev
    • 1
  • A. M. Maksimov
    • 1
  • V. V. Stepanov
    • 1
  • A. M. Chirkov
    • 1
  1. 1.Institute of Volcanology, FESCUSSR Academy of SciencesPetropavlovsk-KamchatskiiUSSR

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