A volcanic eruption occurred at the Sundhnúkagigjaröur volcano in Grindavik, Iceland, on July 16, 2025, prompting evacuations of local residents and the Blue Lagoon geothermal spa.

Lava is flowing southeast from a fissure measuring 700 to 1,000 meters wide, but it currently poses no threat to infrastructure.

This eruption is part of a series of volcanic activities on the Reykjanes Peninsula, which has experienced multiple eruptions since 2020, with the last in April 2025.

The Icelandic Meteorological Office confirmed the eruption and is closely monitoring seismic activity and lava flow, which has moved primarily northward.

Authorities, including civil protection and police, responded swiftly, evacuating around 100 residents in about 90 minutes, with no injuries reported.

Evacuations were conducted smoothly, and officials continue to monitor the situation, raising emergency levels due to increased volcanic activity.

While the eruption is localized and not threatening infrastructure or air traffic, volcanic gases and fine glass fibers, known as 'witch's hair,' pose health hazards.

Travelers are advised to stay updated through official channels, avoid restricted areas, and monitor air quality, especially for vulnerable populations.

Despite the eruption, Keflavik International Airport remains open, with flights operating normally, and the Icelandic tourism industry continues to thrive.

The UK Foreign Office advises British nationals to follow local regulations and check with insurers, noting there are no current travel restrictions for Iceland.

Travelers should anticipate potential itinerary changes, ensure their insurance covers natural events, and stay informed about air quality conditions.

Experts warn that the volcanic activity could continue for decades or even centuries, with lava emerging from large fissures rather than a central crater.