The map depicts the outlined graben due to the seismic activity (image: IMO)
Scientists from the Icelandic Met Office (IMO) measured the presence of volcanic gases from a borehole approving molten rock (magma) in the 15-km long NE-SW linear oriented underground dike.
The latest ground deformation statistics detected that the surface between two GPS stations in the centre of the valley in Grindavík subsided by 25 cm during 12-16 November.
A new map, showing the mapped outline of the graben, resulting from extensive forces of expanding magma beneath the surface, is available now.
Source: Icelandic Met Office volcano activity update 17 November 2023
25 cm elevation difference between two GPS stations during 12-16 November (image: IMO)