Activity at Hayli Gubbi began in July when there was an eruption at Erte Ale. Magma propagated 30 km south passing under Hayli Gubbi. Since then, there has been a small plume, quasi-continuous SO2 emissions and uplift. Details in @uk-comet.bsky.social event response report: tinyurl.com/y3nfdfj8

We think there was a small eruption there in July/August (at least a small plume) and some ongoing activity there since (including continued uplift). I suspect all linked to recent activity along dyke from Erta Ale (See COMET reports on July/August activity at comet.nerc.ac.uk/event-respon...).

Sentinel-5P #TROPOMI measurements at ~11:00 UTC show most of the SO₂ emissions from #HayliGubbi spreading east in the upper troposphere. Plume contains ~44 kilotons of SO₂ (~0.04 Tg).

Dear Judith and Kyle, thank you so much again for the detailed and very instructive explanation!

in the context of the new model by Evi Nomikou and Dimitris Papanikolaou (see Figure) this seismic pattern might be related to the sudden escape of fluids (possibly gases) from the magma body beneath Anhydros

My guess is that fluids are released during the earthquakes and this case could indicate intense fluid movements in the cracks which cause resonation. I found similar patterns in the seismograms occasionally in the past days.

Hi Jannes, very instructive to see this shifting of epicenters along a straight line. Do you have an idea about the reason of that?