Glacial flood prompts Ring Road closure between Vík and Kirkjubæjarklaustur in Iceland

A glacial flood has begun from Mýrdalsjökull, prompting the closure of the Ring Road between Vík and Kirkjubæjarklaustur due to safety concerns. A natural hazard specialist indicated that this situation is likely not a precursor to a volcanic eruption. However, the manager of the Road Administration noted that the Skálmabrú bridge may be at risk of collapse.

As water inundates the Skálm river bridge and stretches about a kilometer east of it, there are fears that the bridge or road could give way. The Ring Road remains closed for an indeterminate duration, further disrupting access in the area. There have been reports of increased conductivity in rivers surrounding the glacier, suggesting geothermal water may be draining from beneath the ice.

Emergency management authorities have declared a state of uncertainty in consultation with local police. Gas meters at Lágahvol have detected elevated values over the past day, alongside reports of a sulfur smell from rivers originating from Mýrdalsjökull.

Despite the heightened activity, a natural hazard expert has indicated no signs of an imminent volcanic eruption. The current flood appears to be relatively small, possibly signaling the conclusion of this particular event. Historically, such floods occur annually due to summer rainfall and warming temperatures, causing surface water to flow into geothermal cauldrons.

Visitors and residents are being advised to avoid areas near the sources of glacial rivers, particularly around Kötlujökull, as there remains a possibility of sulfur dioxide exposure from those locations. While the current state is not considered a major threat, caution is urged overall.