After weeks of intense earthquake activity, a volcano erupted on Iceland’s Reykjanes peninsula in south-west Iceland.
Last month, approximately 4,000 people were evacuated from Grindavik, a fishing town about 4 kilometers (2.5 miles) away.
According to the Icelandic Met Office, the eruption began north of town on Monday at 22:17 local time (22:17 GMT).
A resident near Grindavik described “crazy” and “scary” scenes that night, and said she could still see the volcano erupting on Tuesday.
For weeks, Iceland has been braced for volcanic activity. Since late October, the region around the capital Reykjavik has seen an increase in earthquake activity.
The eruption can be seen from Reykjavik, which is about 42km north-east of Grindavik.
An eyewitness in the capital told the BBC that the eruption had “lit up the sky in red” in the direction of the town, and smoke could be seen billowing into the air.
Experts predict that the eruption will not cause as much disruption as another in Iceland in 2010, which halted European air travel.
The Icelandic Met Office said at 12:30 GMT on Tuesday that the power of the eruption was decreasing, but that gases from the volcano could still be felt in Reykjavik on Tuesday evening or Wednesday morning.
Aoalheiour Halldorsdottir, who lives in Sandgeroi – about 20km from Grindavik – said she had seen the eruption from her home.
“It was crazy to see it with my own eyes. We have had volcano explosions before, but this was the first time I got really scared,” she told BBC News.
“We’re used to volcanoes [erupting], but this was crazy.”
She said there was some “panic” on Monday night, and that she had bought extra supplies of water, but that things had largely returned to normal on Tuesday.
“I’m at work now, and I can still see it. I can see the lights in the sky,” she said.
Hans Vera was evacuated from Grindavik last month, but hoped before Monday’s eruption to return home for Christmas.
But he said: “I don’t see that in the future they will let people get close to Grindavik – so we are back in the waiting game.”
Iceland’s foreign minister, Bjarni Benediktsson said on X, formerly Twitter, that “there are no disruptions to flights to and from Iceland, and international flight corridors remain open”.
“The jets [of lava] are quite high, so it appears to be a powerful eruption at the beginning,” he said.
Hallgrimur Indrioason, a reporter for the state-owned Icelandic National Broadcasting Service (RUV), said the eruption could be seen dozens of kilometres away in Reykjavik, and described the view as “quite spectacular”.
Images and videos posted on social media showed lava bursting from the volcano just an hour after an earthquake swarm – a series of seismic events – was detected.
Police have warned people to stay away from the area.
The length of the crack in the volcano is about 3.5km, with the lava flowing at a rate of around 100 to 200 cubic metres per second, the Met Office said, adding that this was many times more than recent eruptions on the Reykjanes peninsula.
