Overview of Earthquake activity

Earthquake activity throughout the country is described in a weekly summary that is written by a Natural Hazard Specialist. The weekly summary is published on the web every Tuesday. It covers the activity of the previous week in all seismic areas and volcanic systems in the country. If earthquake swarms are ongoing or significant events such as larger earthquakes have occurred during the week, they are specifically discussed. 

Weekly overview

Weekly overview June 10th to June 16th, Week 24, 2024.

Around 350 earthquakes were located by IMO‘s SIL seismic network in Week 24, June 10th to June 16th. The largest earthquakes were located on Reykjanes Ridge on the 15th of june, 2.87 and 2.74 of magnitude, and in Bárðarbunga on the 13th of june which was magnitude 2.79. The seismicity this week has seen very normal seismicity in Iceland.

In the dyke near Grindavík the seismicity has been close to none since the eruption started, which is to be expected when an eruption is ongoing.

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

Weekly overview June 03rd to June 09th, Week 23, 2024

Around 600 earthquakes were located by IMO‘s SIL seismic network in Week 23, June 03rd to June 09th. The largest earthquakes this week measured M2.9. They where three in total but in different places, one just East of Herðubreið on June 03rd, near Húsmúlí on June 03rd and in Hengill on June 04th. Earthquake activity in the dike near Grindavík has been very little during the last week. In the western Hengill region in Húsmúli around 70 earthquakes were detected. Around 20 earthquakes were detected near Askja and more than 300 earthquakes near Herðubreið and Herðubreiðartögl.

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

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Weekly overview May 27h to June 2nd, Week 22, 2024.

About 1200 earthquakes were located by IMO‘s SIL seismic network in Week 22, May 27th to June 2nd 2024. The largest earthquakes this week measured M2.8. They were three total but in different places, near Kolbeinsey the 27th of May, at Sundhnúks crater row the 29th of May and near Hamarinn in Vatnajökull glacier the 30th of May. Seismicity continued in the Reykjanes peninsula on the Sundhnúks crater row, building up until the 29th of May when a propagating dike started and resulted in a volcanic eruption at 12:47 on the 29th of May. That day there were 540 earthquakes measured related to the dike intrusion and eruption, of which 188 were bigger than 1.0 in magnitude. In the western Hengill region in Húsmúli about 24 earthquakes were mesured. About 25 earthquakes were measured near Askja in the north and about 60 earthquakes near Herðubreið.

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

Weekly overview May 20h to 26th, Week 21, 2024.

More than 750 earthquakes were located by IMO‘s SIL seismic network in Week 21, May 20th to 26th 2024. The largest earthquake this week measured M2.8 in Katla Volcano on May 26. In the Reykjanes peninsula seismicity is near the unrest area about 300 earthquakes have been measured and there of about 30 above M1.0 In the western Hengill region in Húsmúli about 110 earthquakes were mesured most in a cluster on May 25th. About 40 earthquakes were mesured north of the country most on the Grímsey fracture zone.







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