Eruptive activity resumes at Sundhnúk volcanic system near Stóra-Skógfell in Iceland

Eruptive activity has resumed at the Sundhnúk volcanic system, located just south of Stóra-Skógfell on the Reykjanes Peninsula, with an eruption reported to have started around 11:14 PM last night. Early observations indicate that the flow of lava has experienced a decrease in vigor overnight.

A series of intense earthquakes began around 10:30 PM, leading to the appearance of a crack extending approximately three kilometers from Sýlingarfell northward. Compared to an eruption last August, this event is significantly smaller in scale, with experts noting that the seismic activity did not rise in the weeks leading up to the eruption as it had in prior incidents. This deviation could signify a change in eruptive patterns.

Lava is currently flowing in a direction that should not threaten the nearby town of Grindavík, as it remains north of water divides. Initial assessments suggest that local infrastructure is not at immediate risk. The evacuation of residents and visitors from Grindavík and the nearby Blue Lagoon proceeded smoothly, with established protocols for such events in place.

Recent aerial surveys reveal the lava’s edge is advancing toward Grindavíkurveg, but at a slower rate than earlier in the night. Although the situation remains under close scrutiny, authorities remain optimistic that the eruption will not directly impact critical facilities or safety.

Furthermore, there is an expectation of gas emissions affecting the region, with forecasts indicating that prevailing winds could carry pollution towards Grindavík, Svartsengi, and Reykjanesbær over the coming days.