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@derekkeir

earthquakes, volcanoes, breaking the continents

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22.01.2025
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Latest posts by @derekkeir

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Hatred, ignorance, fear, greed, and discrimination are viruses, magnified by suffering, carried in buckets, spilled onto the world.

We cannot eliminate them by actions that magnify hatred, ignorance, fear, greed, discrimination and suffering - only by actions that relieve them.

08.03.2026 17:45 👍 11170 🔁 2806 💬 240 📌 95
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Frontiers | New InSAR and seismology analysis of the 1995 Aigion Mw 6.2 earthquake (Greece) As early rifts initiate and evolve, different fault geometries and kinematics may form. In particular, it is debated at what stage low–angle normal faulting ...

New InSAR study by Marella Parnas provides insights on the likely fault responsible for the 1995 Aigion earthquake in the Corinth rift @alarosa.bsky.social @sorcerinsar.bsky.social @talents-dn.bsky.social
www.frontiersin.org/journals/ear...

09.03.2026 08:03 👍 8 🔁 6 💬 0 📌 0
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Frontiers | New InSAR and seismology analysis of the 1995 Aigion Mw 6.2 earthquake (Greece) As early rifts initiate and evolve, different fault geometries and kinematics may form. In particular, it is debated at what stage low–angle normal faulting ...

New InSAR study by Marella Parnas provides insights on the likely fault responsible for the 1995 Aigion earthquake in the Corinth rift @alarosa.bsky.social @sorcerinsar.bsky.social @talents-dn.bsky.social
www.frontiersin.org/journals/ear...

09.03.2026 08:03 👍 8 🔁 6 💬 0 📌 0
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Lisa McNeill training to use a Guralp Certimus for Corinth seismic project @seis-uk.bsky.social @unisouthampton.bsky.social

10.02.2026 10:32 👍 9 🔁 1 💬 0 📌 0

Watch South Africa instead. They normally win.

08.03.2026 12:59 👍 1 🔁 0 💬 1 📌 0
Frontiers | Extensional Tectonics and Relevance to a Green and Low-Carbon Future Over the last few decades substantial progress has been made in understanding the structure of tectonically active rifts, failed rifts, and ancient passive r...

New Research Topic on rifting and the energy transition available for submissions in Frontiers in Earth Science @rehachandresh.bsky.social @talents-dn.bsky.social
www.frontiersin.org/research-top...

02.03.2026 16:07 👍 3 🔁 3 💬 0 📌 0
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Researchers say the ancient breakup of tectonic plates creates churning waves in Earth’s mantle that tumble in slow motion under the continents for tens of millions of years, sculpting topography deep within continental interiors.

Learn more: https://scim.ag/4s8GTEs #ScienceMagArchives

01.03.2026 18:39 👍 113 🔁 30 💬 0 📌 2
Frontiers | Extensional Tectonics and Relevance to a Green and Low-Carbon Future Over the last few decades substantial progress has been made in understanding the structure of tectonically active rifts, failed rifts, and ancient passive r...

New Research Topic on rifting and the energy transition available for submissions in Frontiers in Earth Science @rehachandresh.bsky.social @talents-dn.bsky.social
www.frontiersin.org/research-top...

02.03.2026 16:07 👍 3 🔁 3 💬 0 📌 0
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We have 51 ESPCDs available for loan at SEIS-UK.

These devices are most suitable for shorter period surface wave and body wave studies.

#SeismicSaturdays

21.02.2026 09:00 👍 1 🔁 1 💬 0 📌 0
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Cartoon by Mike Luckovich.

19.02.2026 23:51 👍 19212 🔁 7115 💬 278 📌 255
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#FieldPhotoFriday Sometimes flipping a switch is all it takes when trying to remedy a down station, if only the breaker that had flipped was local! The field crew stopped by this station near Jurupa Valley to diagnose and fix it, flipping the breaker and adjusting some cables is what did the trick!

20.02.2026 18:02 👍 3 🔁 1 💬 0 📌 0
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@seis-uk.bsky.social has had seismic equipment on every continent through our work with the wider geophysics community. We supply equipment, software, training and expertise to ensure that world leading research can be conducted.

24.06.2025 14:25 👍 8 🔁 5 💬 0 📌 0
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The importance of past rifting in large igneous province development - Nature Seismic data from the Turkana Depression in East Africa show that areas of thinned lithosphere are not necessarily persistent weak zones where extension and magmatic provinces will develop.

Nature research paper: The importance of past rifting in large igneous province development

go.nature.com/4nFsYmD

10.11.2025 15:12 👍 13 🔁 6 💬 0 📌 0
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Lisa McNeill training to use a Guralp Certimus for Corinth seismic project @seis-uk.bsky.social @unisouthampton.bsky.social

10.02.2026 10:32 👍 9 🔁 1 💬 0 📌 0

AI is not just for menial works! Great job Gianmaria @derekkeir.bsky.social

02.02.2026 17:49 👍 2 🔁 1 💬 0 📌 0
Cluster analysis reveals increasing plume-like magmatism during progressive rifting in Afar (Ethiopia) - Scientific Reports Reconstructing chemical variations of magma during rifting is challenging due to the heterogeneous mantle sources of the melt and different evolution pathways that magma potentially takes. Therefore, ...

Our new study is out in Scientific Reports!
@natureportfolio.nature.com. We use cluster analysis to reveal how the mantle source beneath the Afar Rift (Ethiopia) evolved during continental rifting.
@sorcerinsar.bsky.social @derekkeir.bsky.social

Check it out here:
www.nature.com/articles/s41...

02.02.2026 17:46 👍 8 🔁 3 💬 1 📌 0
Preview
Frontiers | New InSAR and seismology analysis of the 1995 Aigion Mw 6.2 earthquake (Greece) As early rifts initiate and evolve, different fault geometries and kinematics may form. In particular, it is debated at what stage low–angle normal faulting ...

New paper by Marella Parnas coming out soon re-analysing the 1995 Aigion earthquake of the Corinth rift using InSAR and teleseismic data, and coming up with a new interpretation of the likely causative fault. @sorcerinsar.bsky.social @alarosa.bsky.social
www.frontiersin.org/journals/ear...

30.01.2026 14:47 👍 2 🔁 3 💬 1 📌 0

Well done Doctor Marella Parnas!

30.01.2026 20:03 👍 1 🔁 1 💬 0 📌 0
Preview
Frontiers | New InSAR and seismology analysis of the 1995 Aigion Mw 6.2 earthquake (Greece) As early rifts initiate and evolve, different fault geometries and kinematics may form. In particular, it is debated at what stage low–angle normal faulting ...

New paper by Marella Parnas coming out soon re-analysing the 1995 Aigion earthquake of the Corinth rift using InSAR and teleseismic data, and coming up with a new interpretation of the likely causative fault. @sorcerinsar.bsky.social @alarosa.bsky.social
www.frontiersin.org/journals/ear...

30.01.2026 14:47 👍 2 🔁 3 💬 1 📌 0
16:00 Daniel Sauter (University of Strasbourg, France)
“Was the mantle warmer when Pangea broke up? Insights from initial oceanic crustal thickness alongside the rifted margins of the Atlantic and Indian oceans”

16:20 Éva Oravecz (Eötvös Loránd University, Hungary and ETH, Switzerland)
“The effects of oblique rifting on the syn-rift magmatism and spreading initiation”

16:40 Leila Mezri (University of Bremen – MARUM, Germany)
“Tectonic controls on melt production and crustal architecture during magma-poor seafloor spreading”

16:00 Daniel Sauter (University of Strasbourg, France) “Was the mantle warmer when Pangea broke up? Insights from initial oceanic crustal thickness alongside the rifted margins of the Atlantic and Indian oceans” 16:20 Éva Oravecz (Eötvös Loránd University, Hungary and ETH, Switzerland) “The effects of oblique rifting on the syn-rift magmatism and spreading initiation” 16:40 Leila Mezri (University of Bremen – MARUM, Germany) “Tectonic controls on melt production and crustal architecture during magma-poor seafloor spreading”

⚒️ How does seafloor spreading initiate when continents break apart? ⚒️

Find out in our next #RiftAndRiftedMarginsSeminar

on Feb 2nd 2026, 4 pm CET

with Daniel Sauter,
Éva Oravecz,
Leila Mezri

Register
uni-potsdam.zoom-x.de/meeting/regi...

Past talks
www.youtube.com/@riftandrift...

27.01.2026 07:30 👍 11 🔁 4 💬 0 📌 0
January 5th: “Sources of rift inheritance”

16:00 CET: Mélanie Ballay (University of Strasbourg, France) 
“Mantle inheritance and mantle-melt interaction, two key factors in the lithospheric break-up: insights from the Australia-Antarctica magma-poor rifted margins"

16:20 CET: Jeffrey Pollock (Mount Royal University, Canada)
“The influence of orogenic collapse and tectonic inheritance on continental break-up: insights from seismic anisotropy in the lithospheric mantle"

16:40 CET: Zoltán Erdős (University of Potsdam, Germany)
“The influence of orogenic inheritance on rift dynamics - a numerical modeling perspective”

January 5th: “Sources of rift inheritance” 16:00 CET: Mélanie Ballay (University of Strasbourg, France) “Mantle inheritance and mantle-melt interaction, two key factors in the lithospheric break-up: insights from the Australia-Antarctica magma-poor rifted margins" 16:20 CET: Jeffrey Pollock (Mount Royal University, Canada) “The influence of orogenic collapse and tectonic inheritance on continental break-up: insights from seismic anisotropy in the lithospheric mantle" 16:40 CET: Zoltán Erdős (University of Potsdam, Germany) “The influence of orogenic inheritance on rift dynamics - a numerical modeling perspective”

⚒️ How does orogenic inheritance affect rifting and continental break-up? ⚒️

Find out in our next #RiftAndRiftedMarginsSeminar

on Jan 5th 2026, 4 pm CET

with Mélanie Ballay,
Jeffrey Pollock,
Zoltán Erdős

Register
uni-potsdam.zoom-x.de/meeting/regi...

Past talks
www.youtube.com/@riftandrift...

29.12.2025 18:30 👍 7 🔁 2 💬 0 📌 0
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On board the Gaia Blu research ship of the CNR Italy today in Livorno @sorcerinsar.bsky.social

22.12.2025 07:42 👍 4 🔁 2 💬 0 📌 0
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On board the Gaia Blu research ship of the CNR Italy today in Livorno @sorcerinsar.bsky.social

22.12.2025 07:42 👍 4 🔁 2 💬 0 📌 0
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Alex Whittaker and @rehachandresh.bsky.social on @talents-dn.bsky.social fieldwork in Dobi graben if Afar Looking at a fault breccia in a normal fault zone. #tectonics #geology
@sasbrune.bsky.social @sorcerinsar.bsky.social @alarosa.bsky.social

26.11.2025 06:45 👍 9 🔁 3 💬 0 📌 0
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@rehachandresh.bsky.social at a sheeted dike swarm of the www.afarstratoid.com during @talents-dn.bsky.social fieldwork. @seismatters.bsky.social @sasbrune.bsky.social @sorcerinsar.bsky.social @gimmi-p.bsky.social

26.11.2025 07:00 👍 9 🔁 3 💬 1 📌 0
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Frontiers | Segmented dike intrusion linked to multi-level magma storage during and before the 2025 eruption at Erta Ale (East Africa) IntroductionDike intrusions can assist continental rifting and plate divergence. However, our understanding of the magma dynamics during diking and the archi...

@alarosa.bsky.social new paper of dike intrusion at Erta Ale in July 2025 now out
www.frontiersin.org/articles/10.... @sorcerinsar.bsky.social @sasbrune.bsky.social @wattsvolcanology.bsky.social

26.11.2025 07:54 👍 10 🔁 6 💬 0 📌 0
Preview
Frontiers | Segmented dike intrusion linked to multi-level magma storage during and before the 2025 eruption at Erta Ale (East Africa) IntroductionDike intrusions can assist continental rifting and plate divergence. However, our understanding of the magma dynamics during diking and the archi...

@alarosa.bsky.social new paper of dike intrusion at Erta Ale in July 2025 now out
www.frontiersin.org/articles/10.... @sorcerinsar.bsky.social @sasbrune.bsky.social @wattsvolcanology.bsky.social

26.11.2025 07:54 👍 10 🔁 6 💬 0 📌 0
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@rehachandresh.bsky.social at a sheeted dike swarm of the www.afarstratoid.com during @talents-dn.bsky.social fieldwork. @seismatters.bsky.social @sasbrune.bsky.social @sorcerinsar.bsky.social @gimmi-p.bsky.social

26.11.2025 07:00 👍 9 🔁 3 💬 1 📌 0
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Alex Whittaker and @rehachandresh.bsky.social on @talents-dn.bsky.social fieldwork in Dobi graben if Afar Looking at a fault breccia in a normal fault zone. #tectonics #geology
@sasbrune.bsky.social @sorcerinsar.bsky.social @alarosa.bsky.social

26.11.2025 06:45 👍 9 🔁 3 💬 0 📌 0
16:00 Sarah Stamps (Virginia Polytechnic, U.S.A.)
“Open Access GNSS datasets for investigations of extensional settings”

16:20 Carolina Pagli (University of Pisa, Italy)
“InSAR insights into earthquakes and volcanoes of the East African Rift”

16:40 James Wood (Imperial College London, U.K.)
“Resolving coseismic and aseismic normal fault slip behaviours from InSAR time series: examples from Central Greece”

16:00 Sarah Stamps (Virginia Polytechnic, U.S.A.) “Open Access GNSS datasets for investigations of extensional settings” 16:20 Carolina Pagli (University of Pisa, Italy) “InSAR insights into earthquakes and volcanoes of the East African Rift” 16:40 James Wood (Imperial College London, U.K.) “Resolving coseismic and aseismic normal fault slip behaviours from InSAR time series: examples from Central Greece”

⚒️ What can geodetic techniques reveal about continental rifting? ⚒️

Find out in our next #RiftAndRiftedMarginsSeminar

on Dec 1st, 4 pm CET

with Sarah Stamps, @sorcerinsar.bsky.social, James Wood

Register
uni-potsdam.zoom-x.de/meeting/regi...

Past talks
www.youtube.com/@riftandrift...

25.11.2025 16:42 👍 6 🔁 4 💬 0 📌 0