Þórisjökull quakes continue, weeks-long seismic run points to crustal stress release, monitoring advice unchanged

• Two quakes above magnitude 3 were recorded northwest of Þórisjökull just after 23:00
• The Icelandic Meteorological Office says similar activity has persisted in the area for recent weeks
• Officials' early assessment points to stress release in the Earth's crust
• No change in monitoring or public preparedness advice was reported in the initial assessment

Two earthquakes above magnitude 3 were recorded northwest of Þórisjökull shortly after 11pm on Tuesday, with preliminary measurements putting them at 3.8 and 3.3. Writing in RÚV, Iceland's public broadcaster, reports that several smaller aftershocks followed.

The immediate assessment from the Icelandic Meteorological Office points away from any sudden change in volcanic or civil-protection status. Steinunn Helgadóttir, a natural hazards specialist at the office, told RÚV that the area has seen fairly steady seismic activity over recent weeks and that the most likely explanation is stress release in the crust. That places Tuesday night's pair less as an isolated event than as another entry in an already active sequence. A magnitude 3 to 4 earthquake is large enough to be noticed on local monitoring and by people nearby, but the official description suggests a process already under observation rather than a new emergency.

For residents, road users and operators of nearby infrastructure, the practical signal from the update is continuity. Smaller aftershocks are already being recorded, and more shaking in the same zone would fit the pattern described by the Meteorological Office. RÚV's report did not indicate any new warnings, closures or changes to preparedness advice tied to the latest cluster. The area remains active enough to watch, but the official reading is still the same one Iceland has been giving for weeks: the crust is moving, and the instruments are catching it.

Källor: RÚV