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A giant landslide-explosion circue and debris avalanche at Bakening volcano, Kamchatka

Melekestsev I.V., Dirksen O.V., Girina O.A. (1999) A giant landslide-explosion circue and debris avalanche at Bakening volcano, Kamchatka // Journal of Volcanology and Seismology. Vol. 20, No. 3. pp. 265-279.

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Abstract

This study revealed that the giant cirque of Bakening Volcano had been produced by its eruption ca. 8000-8500 carbon-14 year ago. The eruption is supposed to have been heralded by a large earthquake (M > 7) resulting in the collapse and slide of the SE sector of the cone. The landslide unroofed the hydrothermal system and triggered an explosion which was followed by an ash-and-block pyroclastic flow. A rockslide avalanche rolled down into the valley of the Srednyaya Avacha River and travelled as far as 10-11 km along it. The avalanche deposited its debris material over an area of 18-20 km2 measuring 0.4-0.5 km3 in volume. These deposits dammed the river, produced two lakes (Bezymyannoe and Verkhneavacha), and gave birth to a large lahar which traveled along the valley much farther.
Item Type: Article
Title: A giant landslide-explosion circue and debris avalanche at Bakening volcano, Kamchatka
Title (translation): Гигантский эксплозивно-обвальный цирк и обломочная лавина на вулкане Бакенинг (Камчатка, Россия)
Language: English
Journal or Publication Title: Journal of Volcanology and Seismology
ISSN Print: 0742-0463
ISSN Online: 1819-7108
Uncontrolled Keywords: debris avalanche; landslide; volcanic landform; volcano
Subjects: State scientific and technical information rubricator (ГРНТИ) > 38 ГЕОЛОГИЯ > 38.37 Петрография > 38.37.25 Вулканология
Volcanoes > 1 Volcanoes of the Kurile-Kamchatka Region > 1.1 Kamchatka > Bakening
Related URLs:
Depositing User: к.г.-.м.н. О.А. Гирина
Date Deposited: 16 Sep 2013 04:48
Last Modified: 17 Aug 2016 02:41
URI: http://repo.kscnet.ru/id/eprint/853

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