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Lakes and Volcanic Features of Eastern Iceland – July 28th, 2010

65.2N 16.5W

July 28th, 2010 Category: Image of the day, Lakes, Volcanoes

Iceland - July 21st, 2010

Iceland - July 21st, 2010

Several lakes and volcanic features can be observed in this orthorectified image of eastern iceland. The full image stretches from the Öxarfjörður fjord on the northern coast to the Vatnajökull glacier to the south.

Visible as a black patch near the upper edge of the image thumbnail is Mývatn, a shallow eutrophic lake situated in an area of active volcanism. The lake was created by a large basaltic lava eruption 2300 years ago, and the surrounding landscape is dominated by volcanic landforms, including lava pillars and rootless vents (pseudocraters).

Almost directly south of Mývatn is Öskjuvatn, a lake in the Highlands of Iceland. It is identifiable here by its ringed form due to its location in the crater of the volcano Askya, in the north-east of the glacier Vatnajökull. The lake’s surface area is about 11 km², and with a depth of 217 m it is the deepest lake in Iceland.

Northeast of Öskjuvatn is Kollóttadyngja, a volcano situated in the Ódáðahraun lava-field. Its height reaches 1,177 metres, with a diameter of 6–7 kilometers. The summit crater is 800 meters in diameter, but only about 20–30 meters deep, and in its center, there is a bowl of about 150 meters in diameter, with a depth of about 60–70 meters. This rounded shape is visible here.

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