Yesterday (24. October 2023) at 22:19 UTC an earthquake with magnitude of Mw4,9 took place in Bárðarbunga volcano north eastern part of the volcano. This time it was not in the caldera as is the most common location for this earthquake activity.
This is a inflation connected earthquake activity in Bárðarbunga volcano. This is the second earthquake this year that reaches magnitude of Mw4,9. There is no risk for an eruption in Bárðarbunga volcano at current time.
Yesterday (14. October 2023) an earthquake with magnitude of Mw3,6 took place in Bárðarbunga volcano. This is one of many inflation earthquakes that have taken place in Bárðarbunga volcano since end of the eruption in 2015. This earthquake activity is going to continue for the next 50 to 100 years if nothing changes, but with rate of earthquakes getting lower as the time passes.
This earthquake activity is normal and won’t result in a eruption. This type of earthquake or larger happen currently every two to three months in Bárðarbunga volcano.
Today (4. October 2023) at 16:11 UTC an earthquake with magnitude of Mw4,7 (Icelandic Met Office) or Mw5,0 (EMSC) took place in Bárðarbunga volcano.
This is normal inflation earthquake in Bárðarbunga volcano and large earthquakes like this happen every few months. This means that Bárðarbunga volcano continues to inflate after the eruption in 2014 to 2015. This earthquake activity is not going to result in a eruption and won’t result in a eruption for a long time.
Yesterday (28. July 2023) at 23:42 UTC and 23:55 UTC two earthquakes with magnitude of Mw3,2 and Mw3,6 took place in Bárðarbunga volcano. EMSC is reporting the earthquake at 23:55 as Mw4,7 and that information can be found here.
There where few smaller earthquakes following this larger earthquakes. This is normal inflation activity in Bárðarbunga volcano and this is going to continue for next 30 to 70 years (based on earlier history).
The regular once to two month earthquake in Bárðarbunga volcano took place today (5. June 2023) at 00:04 UTC. This time the earthquake magnitude was Mw3,4. Few smaller earthquakes happened before the main earthquake took place. There has been minimal earthquake activity after the main earthquake.
This is regular earthquake activity in Bárðarbunga volcano. There is no risk of eruption from Bárðarbunga volcano at the moment.
During the night of 23. April 2023 at 03:34 UTC an earthquake with the magnitude of Mw3,2 took place in Bárðarbunga volcano. This was just a single earthquake this time around. Depth of this earthquake was 4,6 km.
This earthquake shows that Bárðarbunga volcano continues to inflate. This is now normal earthquake activity and happens every one to three months, sometimes the time between earthquakes is longer.
Today (19. March 2023) at 14:59 UTC an earthquake with magnitude of Mw3,1 took place in Bárðarbunga volcano. This is normal earthquake activity and shows the inflation that is happening in Bárðarbunga volcano is ongoing after the end of the eruption in 2015.
This type of earthquake activity happens once to twice a month with a earthquake close to magnitude five happening every three to four months. This earthquake activity is getting lower with time, it is likely that it is going to take few more years until it completely stops.
Today (21. February 2023) at 08:41 UTC an earthquake with magnitude of Mw4,9 took place in Bárðarbunga volcano. This is because of inflation that is now happening in Bárðarbunga volcano and has been going on since end of Holuhraun eruption in 2015. Earthquakes with this type of magnitude are going to happen once or twice a year until Bárðarbunga volcano is ready for next eruption and that can take decades. There are going to be smaller earthquakes between larger earthquakes. According to the news, this earthquake was felt in Akureyri.
Last time this happened it took 112 years between eruptions in Bárðarbunga volcano. With the quiet period between 1902 and until 2014. Shortest time between eruptions seems to be around 40 years, but most eruptions happen between 90 to 112 years from last eruption. Based on the data from Global Volcanism Program on Bárðarbunga volcano. There is a lot of uncertainty in this data, so this might be shorter from what it looks like in the data.
I’ve switched to using standard definition for earthquake magnitudes, as shown here (Wikipedia). This is for clarification and simplification when I am writing about earthquakes.
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