Múlakvísl
River in Iceland From Wikipedia, the free encyclopedia
The Múlakvísl (Icelandic pronunciation: [ˈmuːlaˌkʰvistl̥] ) is a river in the south of Iceland on the western side of Mýrdalssandur.
| Múlakvísl | |
|---|---|
 A view of the Múlakvísl, looking towards Hjörleifshöfði in the background and the Atlantic Ocean | |
| Location | |
| Country | Iceland |
| Region | Southern Region |
| Physical characteristics | |
| Source | |
| • location | Mýrdalsjökull |
| • coordinates | 63.6306°N 19.8834°W |
| Mouth | |
• location | Between Vík í Mýrdal and Mýrdalssandur |
• coordinates | 63.4°N 18.8834°W |
| Basin features | |
| River system | Múlakvísl |
The river has a glacier flow which draws its water from the Mýrdalsjökull, mainly through the glacier tongue Kötlujökull. The river's floods are usually of gray-brown color, since it carries much sediment with it.[1]
At Selfjall, about 10 km (6.2 mi) east of the village Vík í Mýrdal, the Ring Road goes across a bridge over the Múlakvísl.
As increasing water levels of this river are an important indicator of Katla's upcoming volcanic eruptions, it is closely monitored.
1955
A predecessor of the present bridge was demolished in 1955, during a jökulhlaup with 2,500 m3/s of water. A fissure formed on Katla in 1918 in the caldera of the volcano, and a kettle had formed upon the glacier. This showed volcanic activities under the glacier, which in turn initiated the jökulhlaup. However, there was no real outbreak in 1955.[1]
July 2011
On 9 July 2011, another jökulhlaup occurred, which was already anticipated hours and days before because of a series of quakes at up to 10 km (6.2 mi) depth in the Katla region.[2][3] There was a small volcanic eruption under the glacier similar to 1955.[4] A jökulhlaup again destroyed the Ring Road bridge of the Múlakvísl, which was only 20 years old. A water level early warning system prompted the closing of the bridge and surrounding area, and no one was harmed.[5] By 11 July 2011, the tremor under Katla had calmed down again. On 15 July 2011, 1,500 people were transported via the Múlakvísl by means of special vehicles.[6] On 16 July, a temporary bridge was put into operation on the river.[7]
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