deformation and seismicity preceding
the eruption that
began 19 March 2021.
a) Model of deformation 24 February – 19 March, showing horizontal
displacements as
arrows and vertical displacements with a
colour
scale. The red line shows the location of the dyke and the
broken black line shows the
central axis of
the plate
boundary
b) Hourly earthquake rate (
blue) and cumulative number of earthquakes
/about-imo/news/fagradalsfjall-eruption-unusual-in-many-ways-compared-to-other-eruptions