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Encyclopedia > Askja
Askja

Askja caldera in 1984
Elevation 1,516 metres (4,974 feet)
Location Iceland
Range Dyngjufjöll
Coordinates 65°02′N 16°45′W
Type Stratovolcano
Last eruption 1961

Askja is a stratovolcano situated in a remote part of the central highlands of Iceland (location: 65.03° N, 16.75° W). The name Askja refers to a complex of nested calderas within the surrounding Dyngjufjöll mountains, which rise to 1,510m. Image File history File linksMetadata Askja. ... A topographical summit is a point on a surface which is higher in elevation than all points immediately adjacent to it. ... The Himalaya as seen from the International Space Station A mountain range is a group of mountains bordered by lowlands or separated from other mountain ranges by passes or rivers. ... Map of Earth showing lines of latitude (horizontally) and longitude (vertically), Eckert VI projection; large version (pdf, 1. ... Mountains can be characterized in several ways. ... Stratovolcano Mount St. ... Volcano 1. ... Stratovolcano Mount St. ... The Highlands of Iceland cover most of the interior of Iceland. ...


The region is only accessible for a few months of the year. Being situated in the rain-shadow to the NE of the Vatnajökull icecap, the area receives only about 450 mm of rainfall annually. The area was used during training for the Apollo program to prepare astronauts for potential lunar conditions. Description Role: Earth and Lunar Orbit Crew: 3; CDR, CM pilot, LM pilot Dimensions Height: 36. ...


Askja was virtually unknown until the tremendous eruption which started on March 29, 1875. Especially in the eastern fjords of Iceland, the ashfall was heavy enough to poison the land and kill livestock. The eruption triggered a substantial wave of emigration from Iceland. The last eruption of the Askja was in 1961. March 29 is the 88th day of the year in the Gregorian Calendar (89th in leap years). ... 1875 (MDCCCLXXV) was a common year starting on Friday (see link for calendar). ... It has been suggested that this article or section be merged with Immigration. ... 1961 (MCMLXI) was a common year starting on Sunday (the link is to a full 1961 calendar). ...


The outer caldera of Askja, representing a prehistoric eruption, is about 45 km², and there is evidence of other later caldera-forming events within it. The main crater floor lies at about 1,100m.


Öskjuvatn is a large lake that fills much of the smaller caldera resulting from the 1875 eruption. Its surface lies about 50m below the level of the main crater floor and covers about 12km². When the lake originally formed it was warm, but today it is frozen over for most of the year. Öskjuvatn is the deepest lake in Iceland at 220 m deep. Öskjuvatn is a lake in the Highlands of Iceland. ... 1875 (MDCCCLXXV) was a common year starting on Friday (see link for calendar). ... Öskjuvatn is a lake in the Highlands of Iceland. ...


Viti is a smaller explosion crater on the north east shore of Öskjuvatn, approximately 100 metres diameter. It contains a geothermal lake of mineral-rich, sulphurous, opaque blue water, which is maintained at a comfortable temperature for swimming. Víti was formed in the eruption of 1875. Öskjuvatn is a lake in the Highlands of Iceland. ... 1875 (MDCCCLXXV) was a common year starting on Friday (see link for calendar). ...

Viti geothermal lake at Askja

In 1907, the German scientists Walter von Knebel and Max Rudloff visited Askja to study the caldera. While exploring Öskjuvatn in a small boat, they disappeared without a trace. Von Knebel's fiancée Ina von Grumbkow led an expedition to search for them, but no indication of what happened to them was ever found. Viti crater, in the Askja caldera. ... Viti crater, in the Askja caldera. ... 1907 (MCMVII) was a common year starting on Tuesday (see link for calendar) of the Gregorian calendar (or a common year starting on Wednesday of the 13-day-slower Julian calendar). ...


In the Dyngjufjöll mountains which surround the Askja caldera can be found the impressive Drekagil, the canyon of dragons. Not far from Askja, there are two other interesting volcanic systems: Herðubreið and Kverkfjöll. Herðubreið (1682 m) is a volcano and table mountain (moberg mountain) in the north-east of Iceland. ... The mountain range Kverkfjöll (1920 m) is situated on the north-eastern border of the glacier Vatnajökull in Iceland. ...


Askja is a popular tourist destination. There are two mountain huts and a campsite at Dreki, by Drekagil, which is located about 100km by unpaved road from the Icelandic ring-road. A dirt road climbs 8km up from Dreki into the Askja caldera. It is a walk of about 2.5km from the car park to Öskjuvatn and Víti. The roads are usually only open for about two or three months in high summer.


See also

Iceland is a large island with extensive volcanic and geothermal activity located on the Mid-Atlantic Ridge in the North Atlantic Ocean east of Greenland immediately south of the Arctic Circle. ... Lakes of Iceland partially indicating surface or depth Þórisvatn 83-88 km², 114 m Þingvallavatn 82 km², 114 m Lagarfljót(Lögurinn) 53 km², 112 m Mývatn 37 km², 4,5 m Hvitárvatn 30 km², 84 m Hóp 29 - 44 km², depending on tides Langisjór... This is a list of active and extinct volcanoes in Iceland. ... Eruption at Eldfell volcano, just outside a town of 5000 people, in 1973 Iceland has a very high number of active volcanoes due to its unique geological conditions. ...

External links


  Results from FactBites:
 
Geografia d'Europa: material de suport (3651 words)
The Askja lake is bounded in the south and east by precipitous cliffs and to the north and west by cliffs cutting the lavas that cover the bottom of the Askja caldera.
The Askja lake is bounded in the south and east by precipitous hyaloclastite cliffs and to the north and west by cliffs cutting the lavas that cover the bottom of the Askja caldera.
Beneath Askja the basaltic intrusions were quenched by a large ground water body confined within the structural boundaries of the caldera with a resulting increase in geothermal activity as observed already in the beginning of 1874.
Askja (43 words)
Askja is a volcano, situated in the uninhabited highlands of eastern Iceland (location: 65.03 N, 16.75 W).
The 1,510 m-high Askja was virtually unknown until the tremendous eruption which started on March 29, 1875.
The last eruption of the Askja was in 1961.
  More results at FactBites »

 
 

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