08 Dec 2021 | 11:25 AM UTC
Iceland: Authorities maintaining elevated alert level at Grimsvotn Volcano as of Dec. 8
Authorities maintaining elevated alert level at Grimsvotn Volcano, Iceland as of Dec. 8 due to increased seismic activity.
Event
Authorities at the Icelandic Met Office are maintaining an orange-level aviation alert at the Grimsvotn Volcano as of Dec. 8 due to elevated levels of seismic activity there. Officials raised the aviation color code from yellow to orange Dec. 6. Raising the level from yellow to orange indicates an increased likelihood of eruption. Glacial flooding has also been ongoing around Grimsvotn, which also occurred prior to previous eruptions at the volcano; however, flooding is not always a precursor to an eruption. The last major eruption at Grimsvotn in May 2011 led to the cancellation of around 900 flights across Europe due to the ash cloud produced by the eruption.
Transport
Transport disruptions in the surrounding area are possible, especially if a significant eruptive event occurs. Road conditions could quickly deteriorate during periods of significant ashfall, and visibility could be reduced. Officials might close roads near the volcano depending on the presence of hazardous volcanic material. Fine particulate matter ejected from the volcano could pose a hazard to flights in the surrounding airspace. Authorities might temporarily close airport facilities if significant ashfall accumulations occur.
Advice
Confirm flights if a large eruption occurs. Plan for possible transportation disruptions if operating near the Grimsvotn Volcano in the coming days. Seek updated information on road conditions before driving; due to reduced visibility, drive cautiously in areas affected by ash. Carry masks or face coverings and observe other precautions to avoid ash inhalation if operating in the affected area.
