A magnitude 5.4 earthquake struck at the southern rim of Bárðarbunga caldera at at 7.03 . Several events of similar size have occurred around the caldera rim in recent days. According to the Icelandic Met Office (IMO) they are interpreted as possibly being related to subsidence of the volcano due to volume decrease in the magma chamber beneath.
Scientists at IMO detected around 450 earthquakes between midnight and 7 this morning, the vast majority in the northern part of the dike intrusion, see maps.
The active part of the dike intrusion extends from about 4 km south of the glacier margin of Dyngjujökull outlet to the location of yesterday's fissure eruption in Holuhraun lava field. Only a few small earthquakes have been located north of the eruption site and there is no sign now of northwards migration towards Askja caldera of the intrusion.
A magnitude 5.4 earthquake struck at the southern rim of Bárðarbunga caldera at at 7.03 . Several events of similar size have occurred around the caldera rim in recent days. According to the Icelandic Met Office (IMO) they are interpreted as possibly being related to subsidence of the volcano due to volume decrease in the magma chamber beneath.
Scientists at IMO detected around 450 earthquakes between midnight and 7 this morning, the vast majority in the northern part of the dike intrusion, see maps.
The active part of the dike intrusion extends from about 4 km south of the glacier margin of Dyngjujökull outlet to the location of yesterday's fissure eruption in Holuhraun lava field. Only a few small earthquakes have been located north of the eruption site and there is no sign now of northwards migration towards Askja caldera of the intrusion.
