VONA message

Reykjanes

Time: 28. Oct 2023, 15:18 GMT

Color code:  Yellow 

Volcano id: 371020

Activity summary:
The latest cGPS measurements, along with a newly acquired InSAR image over Reykjanes Peninsula, reveals a clear sign of ground uplift, centred around Svartsengi. This uplift signal began at some point on 27 October, and it reflects a pressure increase that is probably caused by a magmatic intrusion at depth. This is now the fifth inflation event in the area. From an initial assessment, the ongoing uplift signal is occurring more rapidly than before. The seismic swarm that began on 25 October north of Grindavík has resulted in over 7.000 earthquakes and is still ongoing.

Cloud height:
No eruption ongoing.

Other cloud information:
No eruption ongoing.

Remarks:
Presently, there are no indications of magma moving at shallower depth. However, the situation may evolve rapidly. For instance, significant fracturing has occurred in the Svartsengi area due to triggered seismicity in recent days. Such fracturing could allow magma to find pathways to shallower depth. The Reykjanes/Svartsengi volcanic system is the westernmost systems belonging to the Reykjanes peninsula. It became restless since December 2019-January 2020 when elevated seismicity and repeated magmatic intrusions affected the area. More information on background activity, eruptive scenarios and volcanic hazards is available at icelandicvolcanoes.is/?volcano=REY.