The eruptive fissure is about 3 km long

Based on the first reports from the Icelandic Coast Guard’s surveillance flight, the eruption is in the same area as the eruption on December 18.

The eruptive fissure is about 3 km long, and runs from Mt Sundhnúkur in the south to the east end of Stóra-Skógafell. The lava flows mostly to the west at this stage. The flow of lava seems to be slightly less than at the beginning of the eruption on December 18.

Article on Iceland Monitor

Live feed from the eruption

The lava fountains reach a height of 50-80 meters and the volcanic mass rises to about 3 km.

This is stated in an announcement from the Icelandic Met Office.

At 5:30 this morning, an intense small-quake swarm began northeast of Seylingarfell. About 30 minutes later, a volcanic eruption began in the same area.

In the first minutes the fissure extended to both the north and south.