STROKKUR GEYSER, ICELAND
Strokkur, which is Icelandic for “churn”, is a fountain geyser in the geothermal area beside the Hvítá River and is east of Reykjavik, in Iceland. It is the main attraction in the Haukadalur geothermal area and is one of Iceland’s most well-known geysers. It erupts about every 4-8 minutes in a fountain 15-20 metres high, sometimes up to 40 metres high. After each eruption the geyser pool is emptied, but then fills again within about 10 seconds. The pool bubbles before each eruption, before steam finally pushes the pool’s contents into a fountain.
Strokkur has not always been active. It was first noticed in 1789, when after an earthquake it erupted into a 40 metre high fountain. The eruptions fluctuated during the 19th century, with estimations as to the maximum height of the geyser’s fountain ranging from 20 metres to 60 metres. Earthquakes at the turn of the 20th century seemed to stop the eruptions. Then in 1963 the vent was cleaned down to a depth of 40 metres with a drill, advised by the Geysir Committee (Geysir is a geyser 50 metres north of Strokkur). This action was successful in bringing Strokkur ‘back to life’ and its eruptions are now very reliable.
The photo is of Strokkur in the evening light. Photo of Strokkur during the day: http://on.fb.me/R5D9BU
Image: Auslandsoesterreicherflickraccountinhaber on Flickr http://www.flickr.com/photos/servus_du/2236963991/
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