Another Eruption Imminent Near Reykjavík?

Svanhildur Sif Halldórsdóttir

Svanhildur Sif Halldórsdóttir

The ground has been shaking at the Reykjanes Peninsula in Southwest Iceland since the 21st of December. A swarm of earthquakes has hit the area, with the largest measuring at 4.7.

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Fagradalsfjall Volcano

A caldera spewing lava in the night.
Photo: Privately Guided Tour to Erupting Volcano in Iceland

The eruption of Fagradalsfjall Volcano began earlier this year after laying dormant for 871 years. After a swarm of earthquakes in February and March, a fissure vent appeared near the volcano, resulting in an eruption on the 19th of March, 2021.

Due to its proximity to Iceland’s capital, Reykjavík, Fagradalsfjall attracted many visitors who came to see the red hot magma flowing from the volcano. 

The eruption lasted for a few months, officially ending on the 18th of September 2021. In that time, the eruption changed dramatically, from a slow flow to an erupting geyser-like volcano, reaching around 200 meters in height. 

Same Pattern

Hike to Geldingadalur Active Volcano | Small Group Tour
Photo: Hike to Geldingadalur Active Volcano | Small Group Tour

Another swarm—similar to the one in February—has begun in the area around Fagradalsfjall Volcano. The swarm follows the same patterns like in February, and an eruption warning has been issued in the area.

Since the earthquake began, over 19 thousand earthquakes have been recorded, 14 of which are over 4.0 on the Richter scale.

Hike to Geldingadalur Active Volcano | Small Group Tour
Photo: Arnar Freyr

These earthquakes are believed to be caused by increased pressure at Fagradalsfjall Volcano due to magma accumulation.

Since midnight, about 600 earthquakes have been detected in the region. However, that is much less than at the same time yesterday.

Volcanologists have noted that the seismic activity also slowed down about three or four days before the Fagradalsfjall eruption. However, that does not mean that an eruption will happen, only that it is a likely possibility.

Scientists are monitoring the area closely.

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