At Haukadalur, Geysir’s little brother, Strokkur erupts.
Bonus: a video of a double eruption. Strokkur usually erupts once every 5 minutes. Geysir, the most famous geyser at Haukadalur only erupts when there is earthquake activity, during which the eruption of boiling water can reach up to 122 meters.
https://www.youtube.com/watch?v=yw3MOuweN8o