Bárðarbunga volcano update for 9-January-2015

This is a short update about the eruption in Bárðarbunga volcano.

Not much has changed since the update on Wednesday 7-Januar-2015. If there was an drop in the eruption, it was temporary and the eruption in Holuhraun has not resumed at earlier levels. At least no change has been observed from Míla web cameras today.

Earthquake activity in Bárðarbunga volcano for the past 48 hours. Copyright of this image belongs to Icelandic Met Office.

Largest earthquake in past 24 hours had the magnitude of 5,1. That earthquake took place in North-east part of the caldera in Bárðarbunga volcano. Smaller earthquakes have been taking place in that same area and have been doing so for the past four months. Small swarm of earthquakes have been taking place in the dyke close to the edge of the glacier. I don’t know for sure what that means at the moment, but I do not think it is a good sign. Since there is a high risk of eruption along the dyke, even if there is eruption taking place at just one location at the moment. The dyke is ~46 km long and most of it is under Vatnajökull glacier.

This time of the year glaciers in Iceland area adding weight to them due to snowfall. The chances are this is having effects on Bárðarbunga volcano. Since snowfall on Vatnajökull glacier is around 10 to 20 meters during the winter (this depends on the year). Pressure from the glacier is currently increasing on Bárðarbunga volcano, I don’t know for sure what effects that is having, but it is my best guess that it is slowing down what is happening in Bárðarbunga volcano. Glaciers start to get lighter in June to September each year when the summer melt starts again.

Article updated at 22:25 UTC.