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Posts tagged Kamchatka Peninsula

Overlapping Krasheninnikov Stratovolcanoes, Russia

54.5N 160.2E

November 11th, 2009 Category: Volcanoes

Kamchatka Peninsula, Russia - October 7th, 2009

Kamchatka Peninsula, Russia - October 7th, 2009

The Krasheninnikov Volcano (above, center) is actually two stratovolcanoes that overlap inside a large caldera located in the eastern part of Kamchatka Peninsula, Russia.

The northern cone resembles a Russian doll: it is crowned with a caldera, the caldera encloses a small stratovolcano, and the crater of this volcano hosts a small lava cone.

Multiple adventive vents are located on the flanks of the volcano and outside the caldera. The latter are aligned along the fissure zones parallel to the general strike of the Eastern volcanic belt.

Landslide and rockfall deposits derived from the volcano slopes overlap some lava flows. No historical eruptions of Krasheninnikov volcano are known, but it has been termed active based on fresh morphology and weak fumarolic activity.

Bolshaya Ipelka and Opala Volcanoes on the Kamchatka Peninsula, Russia – October 17th, 2009

52.5N 157.3E

October 17th, 2009 Category: Image of the day, Volcanoes

Russia - September 19th, 2009

Russia - September 19th, 2009

The massive shield volcano in the lower left quadrant of this orthorectified image, is the early Pleistocene Bolshaya Ipelka shield volcano. Although extensively eroded by glaciers, it is the largest volcanic structure of southern Kamchatka.

It has a large volcanic caldera surrounded by a ring-shaped ridge with steep inner walls and rocky outer slopes. A single unnamed Holocene cinder cone is found on the southern flank of Bolshaya Ipelka.

The conical stratovolcano to the east (right) is Opala, located on the same east-west tectonic line. Opala was constructed along the northern rim of a large 12 x 14 km wide caldera.

Southern Tip of Kamchatka Peninsula and Nearby Kuril Islands, Russia – October 1st, 2009

50.8N 156.6E

October 1st, 2009 Category: Image of the day, Volcanoes

Russia - September 19th, 2009

Russia - September 19th, 2009

Cape Lopatka is the southernmost point of Kamchatka Peninsula, Russia, about 11 km north of Shumshu, the northernmost island of the Kuril Islands. Upon opening the full version of this orthorectified image, Shumshu can be seen in is entirety and most of Paramushir Island, below, is visible as well.

The peninsula itself has many volcanic features, including crater lakes and volcanic peaks. Here, Kurile Lake, a large caldera containing a crater lake, can be identified as a light grey area near the top.

The lake has an area of 77 square kilometres (30 sq mi), an average depth of 176 metres (580 ft), and a maximum depth of 306 m (1,000 ft). On the northeast coast is the dormant volcano Ilinskaya.

Souhwest of the lake are two other volcanoes: Kambalny, a stratovolcano (right), and Koshelev, a complex stratovolcano (left). The latter consists of four stratovolcanoes, from which the central Koshelev is the highest.

While many volcanic peaks pierce the image, the most notable is Ksudach Volcano (also known as Voniuchi Khrebet Volcano), visible in the upper part of the full image. This stratovolcano has a summit area comprising overlapping calderas in which two lakes, Balshoe and Kraternoe, are located.

Mountains and Volcanoes of the Kamchatka Peninsula, Russia

56.6N 161.3E

September 8th, 2009 Category: Volcanoes

Kamchatka Peninsula, Russia - August 15th, 2009

Kamchatka Peninsula, Russia - August 15th, 2009

The Kamchatka Peninsula is a 1,250-kilometer long peninsula in the Russian Far East, with an area of 472,300 kmĀ². It lies between the Pacific Ocean to the east and the Sea of Okhotsk to the west.

The southern tip is called Cape Lopatka. The circular bay to the north of this on the Pacific side is Avacha Bay with the capital, Petropavlovsk-Kamchatsky.

Moving north up along the Pacific side, the four peninsulas are called Shipunsky Point, Kronotsky Point, Kamchatsky Point and Ozernoy Point. North of Ozernoy is the large Karaginsky Bay and island.

The spine of the peninsula is the Kamchatka or Central Range, clearly visible here splicing through the center. Along the southeast cost is the Vostochny or Eastern Range. Between these is the central valley.

The Kamchatka peninsula contains the Volcanoes of Kamchatka UNESCO World Heritage Site, many of which can be observed here, particularly along the east coast.

Of particular note is the Shiveluch Volcano, identifiable here near the image center thanks to its distinct brown cone. It is the northernmost active volcano in Kamchatka Krai.

South of Shiveluch, crowned by white, is Tolbachik, a volcanic complex. It consists of two volcanoes, Plosky (flat) Tolbachik and Ostry (sharp) Tolbachik, which as the names suggest are respectively a flat-topped shield volcano and a peaked stratovolcano

Volcanoes Along Eastern Coast of Kamchatka Peninsula, Russia

54.5N 160.2E

August 24th, 2009 Category: Volcanoes

Kamchatka Peninsula, Russia - August 17th, 2009

Kamchatka Peninsula, Russia - August 17th, 2009

The Kamchatka Peninsula in eastern Russia has a high density of volcanoes and associated volcanic phenomena, with 19 active volcanoes being included in the six UNESCO World Heritage List sites in the Volcanoes of Kamchatka group. Many of these volcanoes can be seen in detail in this orthorectified image.

Kronotsky, a major stratovolcano with a particularly symmetrical conical shape, comparable to Mount Fuji in Japan, can be observed at the edge in the upper right corner, east of Lake Kronotsky. The summit crater is plugged by a volcanic neck.

Moving southwest, one comes to Krasheninnikov, two overlapping stratovolcanoes inside a large caldera. To their west is another volcanic caldera, 9 by 12 km, called Uzon, which hosts a large geothermal field.

Nearer to the coast, below these calderas, are several other volcanoes and the Valley of Geysers, the second largest concentration of geysers in the world. This valley is a 6 km long basin containing approximately ninety geysers.

Moving southwest into the lower left quadrant, Karymsky Lake appears as a dark black circular area. This lake is actually a water-filled volcanic caldera that is part of the Akademia Nauk Volcano.

To the northeast of the lake is Maly Semiachik, a compound stratovolcano located in a 10-km-wide caldera within the 15 by 20 km Stena-Soboliny caldera. Three overlapping stratovolcanoes were constructed sequentially along a NE-SW line, with the youngest cone, Ceno-Semiachik, at the southwest end. A hot, acidic crater lake fills the historically active Troitsky Crater, which formed during a large explosive eruption of Ceno-Semiachik about 400 years ago

Directly north of Karymsky Lake is the Karymsky Volcano, the most active volcano of Kamchatka’s eastern volcanic zone. It is a symmetrical stratovolcano constructed within a 5-km-wide caldera that formed during the early Holocene. Much of the cone is mantled by lava flows less than 200 years old.