After weeks of intense earthquake activity, a volcano has erupted on the Reykjanes peninsula of south-west Iceland.

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About 4,000 people were earlier evacuated from the fishing town of Grindavik and the nearby Blue Lagoon geothermal spa was closed.

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The eruption turned the sky over south-west Iceland orange and the smoke from it could be seen from Reykjavik, which is about 42km north-east of the volcano.
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
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The length of the crack in the volcano is about 3.5km, shown in the map below, and the lava was flowing at a rate of around 100 to 200 cubic metres per second after the initial eruption, according to the Icelandic Met Office.
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

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Iceland has been on high alert for a potential volcano eruption for several weeks and local residents were ordered to leave as a precaution. There were no reports of injuries.


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Scientists are continuing to monitor activity at the site and say that while the eruption is weakening, new vents could open at short notice.


