Winter conditions as #Askja caldera
Image acquired by #Sentinel2 on the 3rd of April
Yesterday there was a seismic swarm at #Askja, a system of several nested calderas north of Vatnajökull glacier. We have been following and monitoring an uplift signal in the area that started in July 2021. There was a recent paper about this period of unrest in #AGU Geophysical Reacher Letters : https://agupubs.onlinelibrary.wiley.com/doi/10.1029/2023GL106730
Below is the most recent cloudless image we have acquired by #Sentinel2 on the 19 March.
Also some more info on the swarm from IMO in english: https://en.vedur.is/about-imo/news/seismic-swarm-in-the-northwest-past-of-the-caldera-in-askja-yesterday
Tiens, ça a bougé dans le nord du pays. Une série de séismes dans le secteur de l'Askja ce matin dont un de magnitude 3.5 à 10h40.
Our GNSS stations at #Askja are slowly coming back online as more and more sunlight is available for the solar panels. Inflation is still being observed although there was a change in rate during the fall months. Recently a new paper was published on this inflation period that started in July 2021. This includes modelling two different inflating sources at different depths using both GNSS and #Sentinel1 data.
https://agupubs.onlinelibrary.wiley.com/doi/full/10.1029/2023GL106730