COPENHAGEN—A volcano in southwestern Iceland erupted on Thursday for the third time since December, pumping lava up to 80 meters (260 feet) into the air and threatening to disrupt life in the Reykjanes peninsula.
Video footage showed fountains of bright-orange molten rock spewing from cracks in the ground as daylight broke.
Volcanic outbreaks in the Reykjanes peninsula are so-called fissure eruptions, which do not usually cause large explosions or significant dispersal of ash into the stratosphere.
However, scientists fear they could continue for years, and Icelandic authorities have started building dykes to divert burning lava flows away from homes and critical infrastructure.
The latest eruptive fissure, the sixth outbreak since 2021, was roughly 3 km (2 miles) long, Iceland’s meteorological office said.
Intense earthquake activity began around 5:30 a.m. and the with the eruption itself starting 30 minutes later, it added.
A plume of smoke rose 3 km into the air, according to the Met Office. Still, Reykjavik’s international airport, around 20 km to the northwest of the fissure, was operating as normal, airport operator Isavia said.
The nearby Blue Lagoon—a luxury geothermal spa—closed its doors on Thursday due to the volcanic outbreak.
The previous eruption in the area started on Jan. 14 and lasted roughly two days, with lava flows reaching the outskirts of the Grindavik fishing town, whose nearly 4,000 inhabitants had been evacuated, setting some houses alight.
Thursday’s eruption took place some way from Grindavik and was unlikely to pose a direct threat to the town, Icelandic geophysicist Ari Trausti Gudmundsson told Reuters.
‘Decades’ of Eruptions
Despite downgrading the volcanic system’s threat level, the local authorities have warned of further eruptions as land continued to rise in the area due to magma accumulating underground.The Reykjanes peninsula alone has six active volcanic systems and could see eruptions on-and-off for decades or potentially even centuries, Mr. Gudmundsson said.
Other parts of the country have more powerful volcanoes.
In 2010, ash clouds from eruptions at Eyafjallajokull in the south of Iceland spread over large parts of Europe, grounding some 100,000 flights and forcing hundreds of Icelanders to evacuate their homes.
But unlike Eyafjallajokull, the Reykjanes volcano systems are not trapped under glaciers and are thus not expected to cause similar-sized ash clouds.
Iceland, which is roughly the size of the U.S. state of Kentucky, boasts more than 30 active volcanoes, making the north European island a prime destination for volcano tourism—a niche segment that attracts thousands of thrill seekers.
