Today (20-May-2022) around 18:00 UTC the earthquake activity off the coast of Reykjanestá, that is part of Reykjanes volcano, increased again after few days of little earthquake activity. The earthquake swarm is ongoing and always changing so this article is going to be short because of that.
Largest earthquake so far had a magnitude of Mw3,8 and the second largest earthquake had a magnitude of Mw3,5. The Mw3,8 earthquake was felt in Grindavík and on nearby towns on Reykjanes peninsula. A Mw3,0 earthquake took place just north of Grindavík and was felt in the town.
At 03:17 UTC on 26-November-2021 an earthquake with magnitude of Mw3,5 took place in Vatnafjöll mountains that are south of Hekla volcano. This earthquake was not felt or it was not reported to Icelandic Met Office.
At 07:20 UTC today (6-November-2021) an earthquake with magnitude of Mw4,0 took place in Bárðarbunga volcano. A swarm of smaller earthquakes happened in the same area before and after the strongest earthquake.
This earthquake activity shows that Bárðarbunga volcano continues to inflate after the eruption in 2014 to 2015. This does not indicate that an eruption is about to happen. A lot more earthquake activity and time has to happen before an new eruption happens in Bárðarbunga volcano.
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At 01:28 UTC on 27-October-2021 an earthquake with magnitude of Mw3,3 took place 4 km north of Hveragerði town. This earthquake was clearly felt in Hveragerði and nearby area. No damage has been reported because of this earthquake according to earliest news.
There is a chance there is going to be more earthquake activity in this area. But few earthquakes with no more activity is also common in SISZ.
On 24-May-2021 at 21:36 UTC an earthquake took place in Brennisteinfjöll volcano. The magnitude of this earthquake was Mw3,6 and this earthquake was felt in Reykjavík area.
There have been few smaller earthquakes in this area since the largest earthquake, but other than that it has been quiet. This earthquake is believed to have happened because of stress changes on the Reykjanes peninsula because of the eruption in Fagradalsfjall mountain.
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