Category Archives: Swarm

Ongoing earthquake activity in Katla volcano

For the past few days there has been a earthquake activity in Katla volcano. This is in two forms, as earthquake swarm that are taking place and earthquakes that spread around the caldera and the volcano. The earthquake activity in … Continue reading

Posted in Earthquakes, Katla / Mýrdalsjökull, Magma, Monitoring, Swarm, Volcano | 16 Comments

Earthquake swarm not far from Skjaldbreið (Presthnjúkur area)

Yesterday (22.02.2017) there was an earthquake swarm in the Presthnjúkur area, in a area not far from Skjaldbreið volcano. Earthquake activity yesterday close to Skjaldbreið. Copyright of this image belongs to Icelandic Met Office. This was a minor earthquake swarm, … Continue reading

Posted in Earthquakes, Monitoring, Prestahnúkur, Presthnjúkar, Swarm | 2 Comments

Continued and strong earthquake activity north of Kolbeinsey Island

For the past few weeks something has been going on in the deep ocean far north of Kolbeinsey Island. The area north of Kolbeinsey Island has been having strong earthquake swarms for several weeks now, what is creating them is … Continue reading

Posted in Dyke intrusions, Earthquakes, Kolbeinsey Island, Kolbeinsey Ridge, Magma, Monitoring, Swarm, Volcano | 8 Comments

Earthquake activity increasing in Katla volcano again

For the last 24 hours (15 and 16.02.2017) earthquake activity has been increasing in Katla volcano. If it follows earlier pattern, a swarm of earthquakes with magnitude 3,0 or stronger might happen in Katla volcano in next few days or … Continue reading

Posted in Earthquakes, Katla / Mýrdalsjökull, Magma, Monitoring, Swarm, Volcano | 4 Comments

Earthquake swarm on the Reykjanes Ridge

Yesterday (12.02.2017) and today (13.02.2017) there has been a earthquake swarm on the Reykjanes ridge. For this area of the Reykjanes ridge, this earthquake swarm is normal. It doesn’t appear that it was due to magma movement and only tectonic … Continue reading

Posted in Earthquakes, Monitoring, Reykjanes Ridge, Swarm | 2 Comments

Strong earthquake swarm in Bárðarbunga volcano

Yesterday (30.01.2017) there was exactly one week (article here) since last earthquake activity in Bárðarbunga volcano. In this weekly activity there is an emerging pattern, that pattern is that earthquake magnitude is growing. Number of earthquakes happening in each swarm … Continue reading

Posted in Bárðarbunga, Earthquakes, Magma, Monitoring, Swarm, Volcano | 14 Comments

Strong earthquake activity on Kolbeinsey Ridge

Yesterday (27.01.2017) and today (28.01.2017) has seen some strong earthquake activity on Kolbeinsey Ridge. Largest earthquake in this swarm had the magnitude of Mb4,6 according to EMSC (information here). This area, or area close to it possibly had a dike … Continue reading

Posted in Earthquakes, Kolbeinsey Ridge, Monitoring, Swarm, Volcano | 15 Comments

Katla volcano has magnitude 4,3 earthquake

Today (26.01.2017) at 15:14 UTC a magnitude 4,3 earthquake took place in Katla volcano. This earthquake was felt in Vík í Mýrdal (village) and nearby area. A second earthquake with the magnitude of 3,0 took place few moments after the … Continue reading

Posted in Earthquakes, Katla / Mýrdalsjökull, Magma, Monitoring, Swarm, Volcano | 51 Comments

Earthquake swarm under Grímsey island (Tjörnes Fracture Zone)

Yesterday (25.01.2016) there was an earthquake activity directly under Grímsey island (Wikipedia information). Earthquake swarms directly under Grímsey islands are uncommon, but they do happen from time to time. Current earthquake swarm is getting close to a mid-range scale (as … Continue reading

Posted in Earthquakes, Monitoring, Swarm, TFZ | 3 Comments

Sharp increase in earthquake activity in Katla volcano

In the last 24 hours there has been a sharp increase of earthquakes in Katla volcano. This started yesterday with few minor earthquakes swarms with long quiet period between activity happening. This is what happens when magma is trying to … Continue reading

Posted in Earthquakes, Katla / Mýrdalsjökull, Magma, Monitoring, Swarm, Volcano | 52 Comments