В сообщении приведены новые данные о распространении и возрастах отложений обломочных лавин на южном подножии вулкана Шивелуч, полученные в результате полевых исследований 2011–2013 гг. Все лавины распространились на расстояние более 25 км от современного кратера. Впервые на южном подножии установлены отложения двух раннеголоценовых лавин, наиболее крупных за послеледниковое время.

Исследования позднечетвертичных отложений в районе пос. Ключи (Камчатка)
позволили установить и датировать природные события, происходившие здесь в последние 30
тысяч лет. Среди них лавовые излияния из региональной трещинной зоны, наложенной на
массив Плоских сопок, мощные пеплопады удаленных вулканов, андезитовый этап активности
вулкана Заречного, образование и спуск большого подпрудного озера и таяние ледников
подножия в. Шивелуч.

We report new electron microscopy and high-precision EMP data on tephra from five modern (2009-2011)
eruptions from Kamchatka and Kurile Islands volcanoes. All the studied tephra contain fresh volcanic glass.
Fresh magmatic material prevails in Kliuchevskoi and Sarychev Peak tephra as well as in tephra erupted from
Kizimen volcano in January 2011. Tephra from the initial eruptions of Kizimen volcano (December 2011)
and from Shiveluch and Koriaksky eruptions mainly consist of crystallized rock fragments and crystals
with subordinate amount of glass. Most of the analyzed volcanic glass shards have normal alkalinity and
moderate-K composition as the majority of Kamchatkan magmas. Composition of glasses from the 2010
eruptions of Kliuchevskoi and Shiveluch are consistent with the expected ones for the current period of
their evolution. Composition of volcanic glass from the 2010-2011 eruptions from Kizimen is identical to
that from its largest pre-historic eruptions. This fact implies that a magmatic chamber of stable rhyolitic
composition has been present under Kizimen volcano for at least 10 kyr.

Изменение окружающей среды и климата: природные и связанные с ними техногенные катастрофы. Том II. Новейший вулканизм северной Евразии: закономерности развития, вулканическая опасность, связь с глубинными процессами и изменениями природной среды и климата. М., Изд-во ИГЕМ; 2008, с. 19-40

A large amount of unique scientific data has been collected in the Institute of Volcanology and Seismology FEB RAS (IVS FEB RAS) over the past years of investigations of the Kamchatka and the Kurile Island Arc volcanoes. The distributed storage of data makes it difficult to search data and to use them effectively in scientific research. Actual tasks are the integration of data into thematic information resources, organization of data access on the Internet, as well as the creation of tools for their comprehensive analysis. The paper describes VOKKIA and KVERT information web-systems developed in the IVS FEB RAS. VOKKIA is designed to integration and systematization of heterogeneous scientific data on the terrestrial volcanoes of Kamchatka, the Kurile Islands and submarine volcanoes on the surrounding seas including data on historical eruptions of active volcanoes. The KVERT system contains brief information about active volcanoes of Kamchatka and the Northern Kuriles including their hazard; provides collection and storage of operational data of visual, video, and satellite monitoring of volcanoes; automated preparation and sending KVERT releases on volcanic activity. Besides, the article describes the organization of data exchange between VOKKIA and KVERT and external information systems; describes graphical visualization services and statistical data analysis that helps to detect the relationship, patterns and trends in volcanic processes over time.