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A strong earthquake swarm offshore North Iceland - 22.6.2020

A strong earthquake swarm started on 19th of June offshore North Iceland, NE of Siglufjörður. Three earthquakes above M5.0 have occurred since the swarm started. On 20th of June a M5.4 earthquake occurred at 15:05 and a M5.6 at 19:26. Both these earthquakes were located around 20 km NE of Siglufjörður. The largest earthquake of the swarm occurred on 21st of June at 19:07 and was M5.8.

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Evidences that Grímsvötn volcano is getting ready for the next eruption - 16.6.2020

During its active period, as it is since the eruption in 1996, Grímsvötn erupts on average each 5-10 years. The last eruption occurred in 2011 and it was a fairly large and powerful event. Between eruptions, the deformation data indicate the gradual accumulation of new magma at depth and the increased pressure in the system. In the last weeks scientists from the IMO measured SO2 in the southwest corner of the caldera in Grímsvötn, close to where the last eruptions in 2004 and 2011 took place.

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Seismic activity around Mt. Þorbjörn has decreasing significantly - 4.5.2020

In the beginning of April the uplift in Þorbjörn decreased and, in the second part of the month, it stopped. The area around Þorbjörn is now most likely recovering after the large induced stress, and the injected magma is cooling down and contracting. Along with reduced deformation, seismic activity has decreasing significantly. These data indicate that the injection of magma beneath Þorbjörn has stopped and this second phase of uplift due to magma intrusion can be considered closed. This data was presented during a Scientific Advisory Board, which met on 30th of April to discuss and review the current activity in Reykjanes Peninsula.

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More research is needed to decipher the on-going activity at the Reykjanes Peninsula as a whole - 2.4.2020

On Thursday the 26th of March an on-line Scientific Advisory Board meeting was held to discuss the ongoing unrest in the Reykjanes peninsula. Scientists from IMO, University of Iceland, ISOR and representatives from Civil Protection, HS-Orka, ISAVIA-ANS, and the Environment Agency of Iceland attended the meeting.

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