Seismic activity has been persistent at Bárðarbunga volcano and around the eruption site in Holuhraun, but at comparably low levels during the last hours, according to the Icelandic Met Office’s update this morning.
A 5.5 magnitude earthquake hit the Bárðarbunga caldera at noon yesterday, which is one of the biggest quakes to have hit the area since increased seismic activity was first recorded there on August 16.
Since midnight around ten earthquakes have been automatically detected on the caldera rim of Bárðarbunga. Another roughly ten earthquakes were detected in the northern part of the dike intrusion, all smaller than magnitude 2.0.
Yesterday between 7 pm and midnight, 25 earthquakes were measured: eight at Bárðarbunga, 13 at the northern end of the dike and two at Herðubreið.
Six earthquakes over magnitude 3.0 occurred at Bárðarbunga between 7 pm yesterday and 6 am this morning, the strongest of which were magnitude 3.7.
The volcanic activity at the eruption site in Holuhraun appears to be stable, based on webcam observations this morning.