Overview of Earthquake activity

Around 450 earthquakes were detected in week thirteen, about 430 have been manually reviewed. Last week around 570 earthquakes were detected.

The activity was spread over the country. The biggest earthquake was in Bárðarbunga on the 7^th of april, 2.9 in magnitude.

Further news on the ongoing activity near Grindavík can be found here and is updated regularly.

Around 650 earthquakes were detected in week ten, all have been manually reviewed. Last week 1560 earthquakes were detected. This was due to magma propagation from Svartsengi to the dike underneath Súndhnúkagígaröð on March 3^rd . Magma continues to accumulate beneath Svartsengi. Considering this, the total amount of magma beneath Svartsengi will be over 11 million cubic metres. There is an increased likelihood of new magma propagation and volcanic eruption within the next days.

Most activity during the last week has been on the Reykjanes peninsula. A minor swarm was deteced near Eiturhól in the Hengill area and minor activity was in Vatnajökull and in the North part of Iceland.

Further news on the ongoing activity near Grindavík can be found here and is updated regularly.

Close to 900 earthquakes were detected this eigth week 2024, 770 of which have been manually reviewed. Diverse range of different activity has been detected this week with the continuing uplift in Svartsengi and earthquake activity in the dyke by Sundhnjúksgígar has taken most of the attention. Uplift in Svartsengi has continued at a steady speed, and modeling estimates that the volume of magma below Svartsengi has reached 7.6M cubic meters as of 25. February 2024.
The largest event this week was a M3.2 in Bárðarbunga on February 25^th. Substantial activity has been in both Grímsvötn and Bárðarbunga, both with around 15 detected earthquakes this week. A small seismic swarm has been ongoing in Húsmúli in Hengill from February 15^th, but seismic swarms are common in the area and where borehole injections are known to induce seismicity. A similar swarm has been ongoing this week around Bæjarfjall in the North of Iceland.

Further news on the ongoing activity near Grindavík can be found here and is updated regularly.