This morning (12-July-2022) an earthquake swarm took place in Reykjanes volcano. This earthquake swarm has at the writing of this article around 30 earthquakes. Two largest earthquakes had a magnitude of Mw3,3 and Mw3,4. The second earthquake was felt in towns on Reykjanes peninsula.
It has been rather quiet on the Reykjanes peninsula in last few months. There is always minor earthquake activity happening because of inflation of magma in this area. There has been lack of large earthquakes in recent months. I don’t know why that is. GPS data show that there has not been any notable inflation or deflation in Reykjanes volcano for the last few weeks. That translates into lack of earthquakes. If this earthquake swarm means that is changing is something to watch out for. Small earthquake swarm can mean change, what it means here is unclear. It is known that not every eruption starts with a big earthquake swarm in a volcano.
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