Moderate earthquake in Bárðarbunga volcano this morning (21. April 2024)

This morning on 21. April 2024 at 06:37 UTC an earthquake with magnitude of Mw5,4 took place in Bárðarbunga volcano. Largest aftershock had a magnitude of Mw3,0. There’s no earthquake swarm going on at the time of writing of this article. This earthquake was felt in some parts of Iceland but was possibly detected over most of Iceland in a quiet locations.

Green star showing the location of the large earthquake. Its located in the eastern part of Bárðarbunga volcano caldera.
Earthquake activity in Bárðarbunga volcano. Copyright of this image belongs to Icelandic Met Office.

This is the strongest earthquake in Bárðarbunga volcano since the eruption in Holuhraun in the year 2014 to 2015. This earthquake activity is a long term signal that inflation in Bárðarbunga volcano has reached a new level. Eruption is not going to happen or is extremely unlikely to happen following this earthquake or in next few years. Shortest time between eruptions in Bárðarbunga volcano is around 10 years.

This is how I recorded the earthquake on my own seismometer.

The wave form from the earthquake. A sharp dark spike on the recording of the seismometer. At the end there are strong separated waves that show the surface waves.
The magnitude Mw5,4 earthquake as it was recorded on my own seismometer.