Models show that the extent of the magma tunnel in Reykjanes is significant and magma is approaching the surface. The corridor extends from Kálfellsheiði in the north and runs just west of Grindavík town and into the sea in a southwesterly direction. The magma tunnel is about 15 km long and the magma lies at a depth of about 800 m where it is shallowest. It should be noted that the models are based on satellite data that is about 12 hours old, so it must be assumed that the magma has moved closer to the surface than 800 m. Based on this, it can be concluded that there is a significant chance that magma will manage to break its way to the surface. There is also an increased chance that magma can emerge on the ocean floor.
Source: Meteorological Office of Iceland.
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