Earth’s Cryosphere, 2010, Vol. XIV, No. 3, p. 29-36

DEBRIS FLOW FORMATION IN AREAS OF ACTIVE VOLCANISM (CASE STUDY OF KLUCHEVSKOY AND SHIVELUCH VOLCANOES, KAMCHATKA). PART 2

I.B. Seynova**, S.S. Chernomorets*, O.V. Tutubalina*, A.Y. Barinov*, I.A. Sokolov***

* M.V. Lomonosov Moscow State University, Faculty of Geography, 119991, Moscow, Leninskie Gory, 1, Russia, devdorak@gmail.com
** University Centre for Engineering Geodynamics and Monitoring, Moscow, Russia
*** Institute of Geography, RAS, 119017, Moscow, Staromonetniy per., 29, Russia

We considered features of the formation of volcanic debris flows (lahars) on the basis of our field research in 2008, interpretation of satellite images, and analysis of literature on volcanic eruptions of Klyuchevskoy and Shiveluch volcanoes in Kamchatka Peninsula, Russia. In Part 2 we reconstructed the chronology of volcano-induced debris flows at the Shiveluch Volcano. We focused particular attention on the formation of the water component of volcano-induced debris flows. Mechanisms of lahar initiation as a result of snow melting on volcanoes have been highlighted.

Key words: Debris flow, lahar, glacial/volcanic debris flow initiation mechanism, snow-melting/volcanic debris flow initiation mechanism, Kamchatka.

---