Seismic data for the period Dec. 5–Dec. 20, 2023. The time of the eruption is marked by the vertical yellow band. Seismic activity was relatively low in the weeks preceding the eruption, peaking at 158 earthquakes the day before the eruption. For comparison, at the height of magma emplacement on Nov. 10-11, 2023, the region experienced about 2,000 earthquakes a day. Credit: Icelandic Meteorological Office, public domain, annotated by Melissa Scruggs. Retrieved on Dec. 20, 2023