Korjakskaya Sopka

from Wikipedia, the free encyclopedia
Korjakskaya Sopka
Petropavlovsk-Kamchatsky with the Korjakskaya Sopka in the background

Petropavlovsk-Kamchatsky with the Korjakskaya Sopka in the background

height 3456  m
location Kamchatka ( Russia )
Dominance 198 km →  Kronotskaya Sopka
Notch height 2999 m
Coordinates 53 ° 19 ′ 0 ″  N , 158 ° 41 ′ 0 ″  E Coordinates: 53 ° 19 ′ 0 ″  N , 158 ° 41 ′ 0 ″  E
Korjakskaja Sopka (Kamchatka Region)
Korjakskaya Sopka
Type active stratovolcano
rock Basalt , andesite
Last eruption 2009
pd3
pd5
fd2

Koryaksky ( Russian Корякская сопка ; also Koryaksky , Корякский ) is a stratovolcano on the Russian peninsula of Kamchatka . It is located near the Avachinskaya Sopka and about 30 kilometers from the Pacific Ocean , and it is visible from the regional capital Petropavlovsk-Kamchatsky .

The stratovolcano is part of the Pacific Ring of Fire . The Pacific plate moves at this point northwestward under the western part of the North American plate . This happens in the area of ​​the Korjakski at a speed of about 80 millimeters per year.

Geological history

Overview of lithospheric plates

Korjakskaja Sopka was probably active for many tens of thousands of years. The largest eruptions in the last ten thousand years took place in 5500 BC. Chr., 1950 BC BC and 1550 BC Instead of. They caused large lava flows , the cooled remains of which today indicate the eruptions.

The first recorded eruption occurred in 1890. It was characterized by lava masses emerging from cracks on the southwest flank and phreatic explosions . Five years later, another outbreak was believed to be observed. The clouds rising from the mountain, at first incorrectly interpreted as columns of smoke, came from fumaroles .

The next major eruption of the Korjakski took place in 1926. This was followed by 30 years of volcanic inactivity. The next eruption in 1956 had a strength of three on the Volcanic Explosivity Index (VEI) and was thus stronger than the two previously recorded eruptions. During the eruptions that lasted until June 1957, pyroclastic currents and lahars formed .

On December 29, 2008, the Korjakskaja Sopka broke out again. Until August 2009, ash clouds up to a kilometer high rose several times .

literature

  • D. Droznin, V. Levin, J. Park, E. Gordeev (2002), Detailed Mapping of Seismic Anisotropy Indicators in Southeastern Kamchatka , American Geophysical Union , Fall Conference 2002
  • V. Levin, J. Park, E. Gordeev, D. Droznin (2002), Complex Anisotropic Structure of the Mantle Wedge Beneath Kamchatka Volcanoes , American Geophysical Union, Fall Conference 2002.
  • YA Taran, CB Connor, VN Shapar, AA Ovsyannikov, AA Bilichenko (1997), Fumarolic activity of Avachinsky and Koryaksky volcanoes, Kamchatka, from 1993 to 1994 , Bulletin of Volcanology, V. 58, pp. 441-448.

Individual evidence

  1. ↑ Koryaksky - weekly reports December 2008 to August 2009 in the Global Volcanism Program (English, accessed April 6, 2013).

Web links

Commons : Korjakskaja Sopka  - collection of pictures, videos and audio files