Bárdarbunga volcano news & activity updates
Bardarbunga volcano (Iceland): magnitude 3.8 earthquake, likely not related to magma movements
Wednesday Aug 31, 2016 16:35 PM | BY: T
Yesterday's magnitude 3.8 quake at Bardarbunga volcano
A magnitude 3.8 earthquake followed by dozens of small aftershocks occurred yesterday at 3 km depth under the volcano's northeastern caldera rim (located under the ice cap).
Depth vs time of recent quakes under Barrdarbunga
While it is possible that such earthquakes are caused by shallow magma intrusions, the present quakes at Bardarbunga are more likely result of volcano-tectonic movements, in this case the continuing subsidence of the caldera (a so-called slow caldera collapse) which has been going on since the large 2014-15 Holuhraun flank eruption.
This also seems to reflect the opinion of Icelandic Met Office's seismologists according to a local press article.
Links / Sources:
Links / Sources:
- Earthquake today in Bárðarbunga (Iceland Monitor)
Thursday, Aug 04, 2016
Moderate seismic unrest continues at the volcano. A swarm of earthquakes occurred yesterday afternoon under the northern caldera rim of the volcano. ... [more]
Friday, May 13, 2016
Ever since the large Holuhraun fissure eruption (Aug 2014-Mar 2015), the volcano has remained restless. Over the past months, the volcano's seismic activity has been showing a slow increase. ... [more]
Friday, Feb 05, 2016
Over the past few months, seismic activity at the volcano, mainly under the volcano's large, ice-covered caldera has been increasing again, suggesting that magma might be filling the volcano's reservoir underneath the caldera. ... [more]
Monday, Mar 02, 2015
At noon of the 28th of February, the Scientific Advisory Board for Iceland´s recent volcanic activity officially declared that the eruption at Holuhraun has come to an end. [more]