Because of other activity in Iceland. This article is going to be short.
Two earthquakes took place in Bárðarbunga volcano at 19:59 UTC and 20:02 on 4. July 2023. The magnitudes was Mw3,3 and Mw3,9.
![Two green stars on top of each other in Bárðarbunga volcano in Vatnajökull glacier.](https://icelandgeology.net/wp-content/uploads/2023/07/230704_2055.png)
This is normal activity and happens because of inflation in Bárðarbunga volcano.