Shiveluch

Particulars

Descriptions

Name of the volcano

Shiveluch.

Country

Russia.

Region

Kamchatka peninsula.

Geologic history

Began forming about 60,000 to 70,000 years ago during the Late Pleistocene.

Volcanic province

Eastern Kamchatka Volcanic Arc.

The Aleutian Island Arc and the Kurile-Kamchatka Arc subduction zones.

Largely part of Pacific  ring of fire as the Pacific Plate crust subducts deeper under the Okhotsk Plate

Volcanic  Type

Composite and  Stratovolcano.

Elevation

10,771 ft.

Characteristics

Its summit is truncated by a broad 9-km-wide caldera.

Many lava domes dot its outer flanks.

Largely composed series of overlying thick basaltic-andesitic lava flows.

About 75% of the volume of Shiveluch is constituted by magnesian andesites with from 53.7-63.8% silicate.

Numerous intrusive dikes around the crater edge.

Eruption history

Catastrophic eruptions took place in 1854 and 1964.

On 27 February 2015, Shiveluch erupted shooting ash into the atmosphere about 9,100 meters (30,000 ft) crossing the Bering Sea and into Alaska.

A strong eruption occurred on 11 April 2023.

On 17 August 2024, an eruption of Shiveluch began sending an ash cloud 8 kilometres.

Impact

Pyroclastic flows extended 15 km and destroyed forest around the Bekesh River valley .

Formation of ash clouds reached heights of up to 12 km.

Earthquake.

Other active volcanoes of Russia.

Ebeko, Bezymianny.

PRACTICE QUESTION

Q. Consider the following pairs.

1. Erebus - Antarctica
2. Heard- New Zealand
3. Villarrica - Peru
4. Sheveluch – Russia

Which of the above pair/s is/are incorrectly matched?

A. 1 and 2 only

B. 2 and 3 only

C. 3 and 4 only

D. 2 only

Answer B

Erebus – Antarctica.

Heard- Australia.

Villarrica – Chile.

Sheveluch – Russia.