Day: February 19, 2018

Information in this article are going go outdated quickly.

Here are the latest magnitude updates from the earthquakes this morning as reported by Icelandic Met Office and USGS.

Magnitude 4,9 at 05:34 UTC. USGS reports this as mb4,8.
Magnitude 5,2 at 05:38 UTC. USGS reports this as mb5,0.
Magnitude 4,0 at 06:32 UTC. USGS reports this as mb4,5.

In the last 48 hours 68 earthquakes larger than magnitude 3,0 have happened in Nafir volcano east of Grímsey island. In total 1497 earthquakes have been detected in the last 48 hours.

Current earthquake activity in Nafir volcano east of Grímsey island (TFZ). Copyright of this image belongs to Icelandic Met Office.

The current earthquake activity seems to be dropping a little for the moment. Copyright of this image belongs to Icelandic Met Office.

Currently the weather forecast in Iceland is really bad and that is going to prevent any proper detection of smaller earthquakes. Larger earthquakes are going to go above the wind noise threshold (possibly) and be properly detected. Large enough earthquakes are going be detected by monitoring networks outside of Iceland where weather is not a factor.

Next update is going to be tomorrow about this earthquake swarm. Unless something major happens in Nafir volcano.

Information in this article is going to go outdated quickly.

Uncertainty level has been declared in Grímsey island and nearby area due to the strong earthquake activity in the night. Largest earthquake during the night was a magnitude 5,2 the second largest earthquake had the magnitude of 4,5 at the moment. Based on how it appeared on my geophone it possibly close to being a magnitude 5,0 earthquake. Revision takes time when a large earthquake swarm like this happens. The largest earthquake was felt over a wide area in north, north-east and north-west Iceland according to reports by Icelandic Met Office.

Current earthquake swarm in Nafir volcano east of Grímsey island in the TFZ. Copyright of this image belongs to Icelandic Met Office.

Earthquake activity is high at the moment. Copyright of this image belongs to Icelandic Met Office.

There is currently no end in sight for this earthquake swarm. It remains unclear if this is due to a possible volcano event in the making or just tectonic activity. Currently there is no eruption happening at this location. Unlike what appears on the live updated maps all of the earthquake activity is located east of Grímsey island. The SIL network has problems properly locating the earthquakes automagically when a large earthquake swarm like this happens.