Tim Wright
@timwrightleeds.bsky.social
Prof of Satellite Geodesy, School of Earth and Env, Univ Leeds; Director of NERC_COMET; Co-founder of SatSenseLtd; @timwright_leeds on another site; Fringes, Quakes and some other stuff. All views my own.
Watch this space. Paper now finally accepted after a long journey and data will all be available (much improved on version above as you will see in Jon’s talk below)
December 10, 2025 at 5:21 PM
Watch this space. Paper now finally accepted after a long journey and data will all be available (much improved on version above as you will see in Jon’s talk below)
Reposted by Tim Wright
Pre- and post-eruption visible imagery of #HayliGubbi from #Sentinel-2, showing tephra deposits and 2 new craters. The latter could be eruption vents and/or formed by post-eruptive subsidence. Looks like the pre-existing crater was enlarged by the eruption. @esa.int
November 25, 2025 at 3:45 PM
Pre- and post-eruption visible imagery of #HayliGubbi from #Sentinel-2, showing tephra deposits and 2 new craters. The latter could be eruption vents and/or formed by post-eruptive subsidence. Looks like the pre-existing crater was enlarged by the eruption. @esa.int
Reposted by Tim Wright
Some nice commentary on the #HayliGubbi #eruption here from @julietbiggs.bsky.social and others. As discussed, it's unlikely that this is actually the first eruption of the volcano in 12,000 years. The Afar region is very active but also remote and understudied.
bsky.app/profile/scia...
bsky.app/profile/scia...
The Hayli Gubbi volcano, long thought to be dormant, sent ash nine miles into the sky in an eruption on Sunday
Volcano Erupts After Lying Dormant for 12,000 Years, Sending Scientists Scrambling
The Hayli Gubbi volcano, long thought to be dormant, sent ash nine miles into the sky in an eruption on Sunday
www.scientificamerican.com
November 24, 2025 at 11:37 PM
Some nice commentary on the #HayliGubbi #eruption here from @julietbiggs.bsky.social and others. As discussed, it's unlikely that this is actually the first eruption of the volcano in 12,000 years. The Afar region is very active but also remote and understudied.
bsky.app/profile/scia...
bsky.app/profile/scia...
Reposted by Tim Wright
Quite a lot of research located in and around Afar region has been presented as part of the #RiftAndRiftedMarginsSeminar series - organised by @sasbrune.bsky.social
www.youtube.com/@riftandrift...
@timwrightleeds.bsky.social @julietbiggs.bsky.social
www.youtube.com/@riftandrift...
@timwrightleeds.bsky.social @julietbiggs.bsky.social
Rift and Rifted Margins Online Seminar
This monthly online seminar is currently organised by Sascha Brune (GFZ), J. Kim Welford (Memorial University of Newfoundland), Folarin Kolawole (Columbia University, New York), Derek Keir (Univ. of ...
www.youtube.com
November 25, 2025 at 8:57 AM
Quite a lot of research located in and around Afar region has been presented as part of the #RiftAndRiftedMarginsSeminar series - organised by @sasbrune.bsky.social
www.youtube.com/@riftandrift...
@timwrightleeds.bsky.social @julietbiggs.bsky.social
www.youtube.com/@riftandrift...
@timwrightleeds.bsky.social @julietbiggs.bsky.social
Reposted by Tim Wright
Thanks Tim. @planet.com imagery from Nov 24 show some subsidence in the southern half of the Erta Ale caldera after the #HayliGubbi eruption (plus widespread ash deposits).
November 24, 2025 at 5:29 PM
Thanks Tim. @planet.com imagery from Nov 24 show some subsidence in the southern half of the Erta Ale caldera after the #HayliGubbi eruption (plus widespread ash deposits).
Reposted by Tim Wright
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
tinyurl.com
November 24, 2025 at 4:38 PM
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
Co-eruptive Sentinel-1 data should be acquired tomorrow evening so we'll likely have good InSAR on Wednesday
November 24, 2025 at 4:35 PM
Co-eruptive Sentinel-1 data should be acquired tomorrow evening so we'll likely have good InSAR on Wednesday
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...).
Event Response Reports - COMET
4th September 2025: COMET Event Response Report 1.9 – Fentale Volcano, Ethiopia Purpose/Caveats: This event response report was produced to assist situational awareness and rapid response efforts. It...
comet.nerc.ac.uk
November 24, 2025 at 4:35 PM
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...).
Early days for this one, but doesn’t look like somewhere we’d associate with magma movement.
October 11, 2025 at 5:49 PM
Early days for this one, but doesn’t look like somewhere we’d associate with magma movement.
Yes - think so. The real power in the 2005 event (actually a sequence that continued to 2010) was magma moving into a volcanic dyke. The earthquakes were largely side effects.
October 11, 2025 at 5:48 PM
Yes - think so. The real power in the 2005 event (actually a sequence that continued to 2010) was magma moving into a volcanic dyke. The earthquakes were largely side effects.
Yes - that event was extraordinary. Hopefully this is not!
October 11, 2025 at 5:27 PM
Yes - that event was extraordinary. Hopefully this is not!
Yes. Looks like a moderate event on the fault that bounds the Afar depression. Will check in with our colleagues at Addis Ababa University.
October 11, 2025 at 5:20 PM
Yes. Looks like a moderate event on the fault that bounds the Afar depression. Will check in with our colleagues at Addis Ababa University.
compound with the gates? If so then fault is more or less north-south?
May 13, 2025 at 3:54 PM
compound with the gates? If so then fault is more or less north-south?
I think this is it. The dark areas in the recent Sentinel-2 imagery are the solar panels.
May 13, 2025 at 3:49 PM
I think this is it. The dark areas in the recent Sentinel-2 imagery are the solar panels.
Maybe quite a lot of foreshortening based on aerial photo?
May 13, 2025 at 3:24 PM
Maybe quite a lot of foreshortening based on aerial photo?
Seems to be in a step-over zone from the imagery. If photo is to SSW, then that would make the rupture more or less north-south though? None of the satellite/openstreet map etc have the solar farm mapped to get a robust orientation as far as I can tell.
May 13, 2025 at 3:23 PM
Seems to be in a step-over zone from the imagery. If photo is to SSW, then that would make the rupture more or less north-south though? None of the satellite/openstreet map etc have the solar farm mapped to get a robust orientation as far as I can tell.
Data posted with ~100m pixels but actual resolution a little trickier to quantify as the input data for the 3D inversion is largely Sentinel-1 pixel tracking, but also includes some burst overlap interferometry. @mrnergizci.bsky.social might comment on detailed pixel tracking parameters
May 13, 2025 at 2:15 PM
Data posted with ~100m pixels but actual resolution a little trickier to quantify as the input data for the 3D inversion is largely Sentinel-1 pixel tracking, but also includes some burst overlap interferometry. @mrnergizci.bsky.social might comment on detailed pixel tracking parameters
The geotifs are available via the comet news article linked above.
May 13, 2025 at 2:10 PM
The geotifs are available via the comet news article linked above.
Comments in this video have it at 20°52'55.4"N 96°02'07.0"E www.youtube.com/watch?v=77ub... . Image shows location on COMET N-S displacements from Sentinel-1. About 3 m of overall displacement, but higher-res offset data would be good to get details.
May 13, 2025 at 8:28 AM
Comments in this video have it at 20°52'55.4"N 96°02'07.0"E www.youtube.com/watch?v=77ub... . Image shows location on COMET N-S displacements from Sentinel-1. About 3 m of overall displacement, but higher-res offset data would be good to get details.