Rapid crustal uplift at Mt. Þorbjörn, Iceland

Rapid crustal uplift at Mt. Þorbjörn, Iceland

The Icelandic Met Office (IMO) has reported a considerable upsurge in seismic activity on the Reykjanes Peninsula, with over 18 500 earthquakes recorded since the swarm began on October 25, just north of Grindavík.

Exceptionally intense earthquake swarm near Þorbjörn, Iceland

Exceptionally intense earthquake swarm near Þorbjörn, Iceland

An exceptionally intense earthquake swarm lasting nearly two hours started at Þorbjörn in Iceland at 08:40 on October 31, 2023. The largest event registered an M3.7, and the activity signaled potential magma movement at depths between 1.5 km and 5 km (0.93 – 3.1 miles).

Complex volcano-tectonic unrest affecting the Reykjanes Peninsula, Iceland

Complex volcano-tectonic unrest affecting the Reykjanes Peninsula, Iceland

An episode of complex volcano-tectonic unrest is currently affecting the Reykjanes Peninsula, the Icelandic Met Office (IMO) said on October 29, 2023. It is interpreted to result from multiple deformation sources at depth, which are interacting and affecting a wide area across the peninsula.

Intense earthquake swarm near Fagradalsfjall volcano, Iceland

Intense earthquake swarm near Fagradalsfjall volcano, Iceland

An intense earthquake swarm started north of Grindavik and near Fagradalsfjall volcano, Iceland’s Reykjanes Peninsula early on October 25, 2023, prompting the Civil Protection Service to declare an uncertainty phase due to the seismic swarm.

Officials warn of potential volcanic eruption near Fagradalsfjall before Christmas, Iceland

Officials warn of potential volcanic eruption near Fagradalsfjall before Christmas, Iceland

Rapid land elevation near Iceland’s Fagradalsfjall volcano indicated the formation of a new magma chamber, prompting warnings of a potential volcanic eruption on the Reykjanes Peninsula in the weeks or months to come. The Icelandic Meteorological Office urged caution, especially for those planning outdoor activities in the region.

More than 4 700 earthquakes detected between Fagradalsfjall and Keilir in 48 hours, Iceland

More than 4 700 earthquakes detected between Fagradalsfjall and Keilir in 48 hours, Iceland

More than 4 700 earthquakes have been detected in the area between Fagradalsfjall and Keilir, Reykjanes Peninsula, Iceland since the start of seismic swarm on July 4, 2023. Ground deformation (GPS) observations show significant movements, indicating magma propagation in the region where earthquakes are highly concentrated. Magma intrusion is close enough to the Earth’s surface that a volcanic eruption could occur without further escalations in seismic activity or ground deformation.