Petropavlovsk -Kamchatsky with the Korjakskaja Sopka in the background


Korjakskaja Sopka (Russian Корякская сопка, also Koryaksky, Корякский ) is a stratovolcano on the Kamchatka Peninsula in Russia. It is located near the Awatschinskaja Sopka and about 30 kilometers from the Pacific Ocean, and is always visible from the regional capital Petropavlovsk -Kamchatsky from.

The stratovolcano is part of the Pacific Ring of Fire. The Pacific and the Eurasian plate converge, the former pushes it under the latter. This is done in the region of the Koryaksky at a rate of about 80 millimeters per year.

Geological History

Korjakskaja Sopka was presumably active over tens of thousands of years. The largest eruptions of the last ten thousand years came to 5500 BC, 1950 BC and 1550 BC instead. They caused great streams of lava, which cooled remains today point to the outbreaks.

The first recorded outbreak occurred in 1890. He was influenced by emerging from cracks on the southwest flank lava flows and phreatic explosions. Five years later, it was believed to observe a further outbreak. The ascending the mountain clouds, initially misinterpreted as columns of smoke, but came from fumaroles.

The next major outbreak of Koryaksky took place in 1926. This was followed by 30 years of volcanic inactivity. The next outbreak was in 1956 a strength of three on the Vulkanexplosivitätsindex ( VEI ) and was stronger than the two previously recorded outbreaks. In the June 1957 to ongoing eruptions pyroclastic flows and lahars formed.

On December 29, 2008 Korjakskaja Sopka broke out again. By August 2009, more times increased ash clouds up to one km high.