Dozens of terrified guests reportedly fled the resort, which has two hotels, in taxis overnight after the earthquakes began.
“Blue Lagoon will closely monitor the developments of seismic activity in the upcoming days and reevaluate the situation accordingly,” it added in a statement.
Since 25 October there have been about 22,000 earthquakes measured in the seismic swarm, largely in the south-west of Iceland.
“While the accumulation of magma continues, seismic activity can be expected on the Reykjavík peninsula because the magma intrusion causes increased tension in the area,” a spokesperson said.
They added: “The seismic activity last night and this morning is an example of this frenetic seismic activity that can be expected while magma accumulation is in progress.

Geothermal spa closes in Iceland as guests flee after series of earthquakes