A vivid red aurora was photographed over Selfoss around 2 a.m., a rare display caused by oxygen emissions high in the atmosphere. Photos also showed green fringes, with purple and pink hues possible when nitrogen is involved.

Iceland experienced intense cold overnight, with -19.8°C recorded at Sandskeið around 6 a.m., and meteorologist Einar Sveinbjörnsson says it is likely the coldest 30 October on record. Reykjavík dropped to just over -8°C, and an Icelandic Met Office table showed -20.2°C at Setur south of Hofsjökull overnight.

A mosquito species, Culiseta annulata, has been confirmed in Iceland after specimens of both sexes were captured in Kjósarhreppur on October 16–18, 2025. The find suggests mosquitoes may now be present in the country, long considered free of them.

A magnitude 3.3 earthquake struck near Grjótárvatn on Mýrar this morning, the largest in the Ljósufjöll volcanic system in about three and a half months. Roughly 45 quakes have occurred since last night at 15–20 km depth, and the Icelandic Met Office notes concern would rise if activity shallows.

Vestari Hagafellsjökull, on the south side of Langjökull, has retreated about 200 meters since 2023, according to a preliminary glacier-terminus survey conducted on 20 September 2025. Since 2009 the glacier has receded roughly 973 meters through 2023, with accelerated retreat likely tied to this summer’s warmth.

An angler caught a farmed Atlantic salmon in the Blanda River, North Iceland, renewing concerns about escapes and hybridization with wild stocks. Local monitors report over 7% hybrids among juveniles in a key fishing zone following earlier sea-pen damage.

Rescue teams assisted dozens of travelers in the Fjallabak/Landmannalaugar highlands as heavy rain and high water submerged roads. Advisories to avoid the area appear to have worked, with few vehicles present and all travelers getting through safely.

A sudden glacial outburst flood from a marginal lake near Langjökull sent water into the Svartá and downstream into the Hvítá in Borgarfjörður, peaking above 400 cm overnight before easing to just over 300 cm. Authorities warn further river flooding is possible in coming days, with increased landslide risk in southeast Iceland.

A magnitude 3.3 earthquake struck northeast of Langjökull near Djöflasandur this morning, marking the strongest quake in the area since November 2007.

Severe winds on the Holtavörðuheiði pass in Húnaþing Vestra, Iceland, blew apart three caravans, prompting a multi-hour rescue response by the Húnar Hvammstanga search and rescue team.

A temporary bridge in Borgarfjörður, Iceland, collapsed after an ice jam in the Hvítá River caused significant flooding.

Unseasonably warm weather in Iceland is causing melting snow and thawing ice, leading to wet and slippery conditions, with yellow weather warnings issued for parts of the country.

We've become very used to seismic activity in Iceland's southwest corner, but last night, four earthquakes above magnitude three hit a very different area - the Kolbeinsey ridge, far off the country's northern coast.

Melting glaciers in Iceland are contributing to an increased supply of electrical power. In the past ten years, the additional supply has amounted to one medium-sized power plant.

A fog-like mist in northern Iceland may be connected to forest fires in Canada, with meteorologists suspecting that diluted smoke from the fires has reached the country due to prevailing winds blowing from west to east.

The degenerative and fatal disease scrapie has been diagnosed in sheep at Bergsstaðir farm in Northwest Iceland. It is the first time the disease has been detected in the region, which will have an impact not just on Bergsstaðir but the entire district.

The berry picking promises to be good all over Iceland this year, even though it is starting late, due to the cool, wet summer. Arna, the lactose-free dairy company based in Bolungarvík, has already received a tonne of wild bilberries, which will be used in yoghurt for sale in shops all over Iceland.

The Icelandic Food and Veterinary Authority (MAST) has reason to suspect that a bacterial disease called Brucella canis has been found in dogs in Iceland. RÚV reports that Bruncella canis can—in very rare instances—be transmitted from dogs to humans, with young children, pregnant, and immunocompromised people at the greatest risk of serious infection.

A wildfire alert is now in effect across roughly half of Iceland following weeks of dry weather and fires across the Southwest quadrant of the country.

Vegagerðin (the Road and Coastal Administration) is encouraging people to postpone journeys on Route 1 in the west and northwest of the country due to significant amounts of tar bleeding from the road surface and causing considerable danger and damage to vehicles. Clumps of tar collect and harden on the tyres of passing vehicles, making driving treacherous. Chunks fly off and have been causing some serious damage.