The 2025 eruptions of Erta Ale and Hayli Gubbi

ADD-ON affiliated personal have been critical in monitoring ongoing volcanic and seismic activity in Afar.

 

Since 2024, we have used real-time satellite remote sensing and seismology to monitor and document activity at Fentale, Erta Ale and Hayli Gubbi volcanoes

 

2025 - Hayli Gubbi

 

We were onsite in Afar during the November 2025 explosive eruption of Hayli Gubbi. Field measurements, geochemistry of tephra samples, satellite remote sensing, and seismology were combined to show that the eruption was likely triggered by a magma intrusion from Erta Ale.

 

The 2025 Hayli Gubbi activity summary is available at - 

https://link.springer.com/article/10.1007/s00445-026-01997-3#citeas  

 

 

​​​​​​​​​​​​​​​​​2025 - Erta Ale

We used InSAR and seismology to monitor the magma intrusion and basaltic lava that were sourced from Erta Ale lava lake

 

The 2025 Erta Ale activity summary is available at - ​

https://www.frontiersin.org/journals/earth-science/articles/10.3389/feart.2025.1719687/full

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2024/2025 - Fentale

InSAR and seismology were analysed in real-time to monitor the mega-dike intrusion from Fentale volcano during December 2024 to March 2025. 

 

The 2024/2025 Fentale activity summary is available at - 

https://www.science.org/doi/10.1126/sciadv.aed6073

 

​​Data

Some of the key data comes from seismic stations. For example during the eruption of Hayli Gubbi, volcanic tremor at Hayli Gubbi shows us the exact timing of rapid magma flow during the eruption. The research suggests multiple volcanoes are linked subsurface (text and figures modified from Ayalew et al. (2026).

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