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.
Around
450
earthquakes
were detected in the
16th
week of 2024 which
is less than last week when 700 earthquakes were detected. The
activity was spread around the country. The largest earthquake of the
week was a M5.4 on the 21 April in Bárðarbunga. Large earthquakes
are common in Bárðarbungu but this is the largest earthquake in
Bárðarbunga since the eruption in Holuhraun ended in 2015. Activity
of smaller earthquakes continues in Bárðarbunga as has been
observed for the past weeks.
The
eruptions that started on March 16th
continues, but is confined to one vent.
Further
news on the ongoing activity near Grindavík can be found here
and is updated regularly.
Around 700 earthquakes were detected in the 15th week of 2024. This is rather more than last week but similar to an average week's activity this year, besides when magma intusions have occurred.
Mentionable activity this week is an earthquake swarm in southern Kleifarvatn, and minor earthquake swarm Northwest of Grindavík which has been linked to different stress conditions in the crust due to the continued uplift in Svartsengi.
Activity
of smaller earthquakes continues in Bárðarbunga as has been
observed for the past weeks.
Some activity was also measured on
the Reykjanes ridge, around 90km SW of Reykjanestá.
Largest event this week was a M3.3 in Kleifarvatn at 10 in the morning on April 10th. The earthquake was felt in SW Iceland.
The
eruptions that started on March 16th
continues, but is confined to one vent.
Further
news on the ongoing activity near Grindavík can be found here
and is updated regularly.
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 7th 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 3rd . 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.
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