Inflation slows in Krýsuvík-Trölladyngja volcano system

This is a short article that because the situation can change without warning and article is written on 19-March-2021 at 21:07 UTC. There have been updates to names used and now Krýsuvík-Trölladyngja name is used by Global Volcanism Program and Icelandic Met Office. Suggesting that the magma that is about to erupt has its origin in Krýsuvík volcano system eat of current centre of activity. This sometimes happens in Iceland when magma travels long distances deep underground.

Earthquake activity in Krýsuvík-Trölladyngja volcano system with two green stars showing two earthquakes with magnitude larger than three
Earthquake activity in Krýsuvík-Trölladyngja volcano system. Copyright of this image belongs to Icelandic Met Office.

Today at 15:01 an earthquake took place with magnitude of Mw3,1. This earthquake has in my view clear signs of magma movement close to the surface as the depth of this earthquake was just 0,1 km (100 meter).

A magnitude 3,1 earthquake that took place. Image shows P wave and a S wave and a long period after the S wave
A magnitude Mw3,1 earthquake that took place today at 15:01 UTC.

This earthquake strongly suggests that magma created it at shallow depth. It has not yet resulted in an eruption but it is a question if this the final sign before an eruption happens. The current quiet time might last up to 2 months but it is impossible to know for sure.

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