4.4 Magnitude Earthquake in Mýrdalsjökull Glacier Last Night Skip to content
Earthquakes in Mýrdalsjökull
Photo: Earthquake swarm in the Mýrdalsjökull glacier (Vedur.is).

4.4 Magnitude Earthquake in Mýrdalsjökull Glacier Last Night

A swarm of earthquakes struck South Iceland’s Mýrdalsjökull glacier last night. No evidence of volcanic activity has been found, a natural hazards expert with the Icelandic MET Office confirmed to Mbl.is this morning.

No evidence of volcanic activity

A swarm of earthquakes was registered in South Iceland’s Mýrdalsjökull glacier last night, with more than 70 earthquakes recorded since the initial tremor at 1.18 AM, Mbl.is reports. Bjarki Kaldalóns Friis, a natural hazards expert from the Icelandic MET office, anticipates ongoing seismic fluctuations in the region.

“The initial swarm lasted approximately 45 minutes, followed by a brief pause before resuming. Since 1 AM last night, approximately 70 earthquakes have been recorded. Among them, five registered above magnitude 3, with the largest measuring 4.4 magnitude at 2:45 AM. Notably, there is no evidence of volcanic activity or similar phenomena,” he added. Bjarki also mentioned that seismic activity was felt in populated regions, particularly in Þórsmörk.

“The swarm is related to a geothermal system situated beneath the Mýrdalsjökull glacier; we’re not expecting an eruption or anything like that,” Bjarki remarked, adding that there was nothing to indicate an increase in electrical conductivity or water level.

Bjarki also highlighted the possibility of geothermal water leakage occurring at the Markarfljót or Múlakvísl rivers due to the ongoing activity. Nevertheless, current measurements show no evidence of heightened electrical conductivity or of water level changes.

“This activity in Mýrdalsjökull has been ongoing for several weeks, representing a continuation of the same pattern possibly linked to the geothermal systems beneath the glacier,” Bjarki explained. “It’s not over, as seismic activity tends to fluctuate,” he added.

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