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Stéphane Baize

@stef-eq-geology.bsky.social
2K followers 278 following 76 posts

Géologue des séismes / Earthquake Geologist ⚒️🌍🌎🌏

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Reposted by Stéphane Baize
DaisukeIshimura @daisukeishimura.bsky.social · 07/04/2026
Our new paper is out! Ishimura, D., Takahashi, N.O., Tsutsumi, H., Homma, S., Mukoyama, S., Ichihara, T. (2026) Paleoseismic trenching on slip-partitioned surface ruptures associated with the 2016 Kumamoto earthquake. Seismica. seismica.library.mcgill.ca/article/view...
seismica.library.mcgill.ca
Paleoseismic trenching on slip-partitioned surface ruptures associated with the 2016 Kumamoto earthquake
Surface ruptures appear over a wide area in addition to the primary fault during a Large earthquake like the 2016 Kumamoto earthquake. Although the displacement of such distributed surface ruptures is...
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Stéphane Baize @stef-eq-geology.bsky.social · 31/03/2026
#Trail du weekend à Jouy-En-Josas 37 km/700 m D+. Le printemps commence bien 👍 🏃
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Reposted by Stéphane Baize
Observatoire volcanologique du Piton de la Fournaise @ovpf.bsky.social · 14/03/2026
🌋Eruption au #pitondelafournaise Retour en images sur la nuit du 12 au 13 mars 2026 le long de la route nationale 2. ©OVPF-IPGP
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Stéphane Baize @stef-eq-geology.bsky.social · 11/03/2026
In this paper, we quantify the tectonic deformation and document paleoearthquake activity in the Northern Andes of Ecuador egusphere.copernicus.org/preprints/20...
egusphere.copernicus.org
Distributed right-lateral strain at the northern boundary of the Quito-Latacunga microblock
Abstract. Remote sensing and field data suggest distributed right-lateral faulting at the northern edge of the Quito-Latacunga microblock in northern Ecuador and southern Colombia. Off the west coast ...
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Stéphane Baize @stef-eq-geology.bsky.social · 10/03/2026
In this paper, we evaluate the long-term slip rate of the fault that caused the deadly M6.4 Petrinja, Croatia, #earthquake in 2020 tektonika.online/index.php/ho... Congratulations Maxime!
tektonika.online
Unraveling the Kinematics and Morphotectonics of the Petrinja Fault (Croatia), Source of the 2020 M 6.4 Earthquake | τeκτoniκa
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Rob Langridge @aotearoa-unzpd.bsky.social · 07/03/2026
Preparing one drowned tree from Lake Paget for radiocarbon dating. Tiny tree rings will help date the most recent event on this end of the Awatere Fault
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Reposted by Stéphane Baize
Rob Langridge @aotearoa-unzpd.bsky.social · 19/02/2026
Last week trenching the northern Alpine Fault at Blue Grey River w/ @stef-eq-geology.bsky.social and @jameslagreca.bsky.social and friends looking for paleoearthquakes. Many sandfly enemies too
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Stéphane Baize @stef-eq-geology.bsky.social · 05/03/2026
Lago d’Orta, Piémont, Italie, mars 2026
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Stéphane Baize @stef-eq-geology.bsky.social · 19/04/2025
G. De Empoli: « Les seigneurs de la tech ont établi une forme d’empire, sur les sphères publique et politique, et dans la vie de chacun d’entre nous. » « puisque le défi est philosophique et culturel, toute résistance commence par la connaissance. » legrandcontinent.eu/shop/produit...
legrandcontinent.eu
le Grand Continent, vol. 4 L'Empire de l'ombre. Guerre et terre au temps de l'IA - Grand Continent
Commandez le nouveau numéro papier du Grand Continent chez Gallimard ou cliquez ici pour vous abonner et recevoir le volume sans frais de port   Sous la direction de Giuliano da Empoli. Postface par B...
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Stéphane Baize @stef-eq-geology.bsky.social · 18/04/2025
Phalasarna was a Hellinistic port that was massively uplifted (~8 m) during the well-known 365 AD M>8 Crete #earthquake. Perched notches are also visible in the area. link.springer.com/chapter/10.1...
The picture shows remnants of the port (piers, towers) excavated from the ground after massive uplift during the 365 AD Crete earthquakeAt the bottom of the cliff, the picture shows a perched ter race and related notch, probably uplifted during the 365 AD Crete earthquake
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Stéphane Baize @stef-eq-geology.bsky.social · 17/04/2025
Visiting the Knossos palace is mandatory when spending several days in Crete 🤩 How far the Minoan civilization has been shaped by #earthquake activity is discussed in this book: lup.be/book/minoan-...
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Stéphane Baize @stef-eq-geology.bsky.social · 14/04/2025
Kalispera Hellas 🇬🇷
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Dr. Eric J. Fielding, PhD @ericfielding.mastodon.social.ap.brid.gy · 01/04/2025
NASA JPL ARIA project analysis of data from Copernicus Sentinel-2 optical and Sentinel-1 radar images measured the slip on the Sagaing Fault in Myanmar. Quick preliminary map. More details later. Fault ruptured about 500 km (300 miles) in the magnitude 7.7 […] [Original post on mastodon.social]
Map of Myanmar area showing sharp color change along the fault running roughly north-south. Red on west side where land moved northward.
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Rich Briggs @rangefront.bsky.social · 01/04/2025
Remote surface rupture observations for the M7.7 2025 Myanmar earthquake - soft rollout! doi.org/10.5066/P1RY... Simple fault trace and slip distribution from pixel tracking, high-res from available imagery. Watch for updates! ⚒️ USGS and collaborators effort led by @nadinegrr.bsky.social 🙏
Screenshot of Myanmar M7.7 surface rupture map service
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Kristen Cook @kristencook.bsky.social · 31/03/2025
This matches very well with traces of the surface rupture visible a few km to the north on the high resolution Planet SkySat images (thank you Planet!). The offset road is the northernmost point on the overview, and I measured about 4.5 m of offset there.
Satellite image of part of the area affected by the Myanmar earthquake. The lower left of the image has large and small buildings. The lower right corner shows a river. A linear ridge goes up the middle. To the left of the ridge are a series of blue dots more or less n a line.Closeup of satellite image. A white road goes across the middle, with trees below and a field above. The road is cut and offset by about the road width.
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Stéphane Baize @stef-eq-geology.bsky.social · 05/02/2025
Analysis of the 2024-10-05 M 4.5 Iran #earthquake signal revealed that it was a natural event, not a nuclear test seismica.library.mcgill.ca/article/view...
seismica.library.mcgill.ca
The propagation of seismic waves, misinformation, and disinformation from the 2024-10-05 M 4.5 Iran earthquake
The 2024-10-05 Iran M 4.5 earthquake took place at a time of heightened tensions in the Middle East. We perform a discrimination and moment tensor analysis and identify a shallow-dipping, reverse faul...
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Stéphane Baize @stef-eq-geology.bsky.social · 30/01/2025
Here are the Proceedings of the marvellous INQUA PATA Days in Chile, last october (2024), on Active #Tectonics and #Paleoseismology : libros.uchile.cl/1446 Thanks again to the organizing team !
libros.uchile.cl
Proceedings of the 12th International INQUA meeting on Paleoseismology, Active Tectonics and Archaeoseismology, October 6th-11th, 2024, Los Andes, Chile
El Portal de Libros de la Universidad de Chile da acceso libre y en texto completo a obras editadas y/o publicadas por académicos e investigadores de la Universidad. Además ofrece una amplia variedad...
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Erin McEwan @earthscierin.bsky.social · 16/01/2025
10 years ago I thought I wasn't smart enough to study #geology, but some colleagues convinced me to try anyway. Today I just published my 2nd paper, which explores how fault ruptures can alter river behaviour and flood hazard. Check it out here! www.sciencedirect.com/science/arti...
Top: It's a sunny day and a lady in a wide brimmed hat, long sleeved shirt and bike shorts stands on a grassy hill in front of a large braided river occupying a mountain valley. Bottom: three block diagrams illustrating how faults can interact with river channels by creating a dam, shifting them laterally, or tilting the channel in retrograde.
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monterrosof.bsky.social @monterrosof.bsky.social · 13/01/2025
#DInSAR Automatic Sentinel-1 coseismic Interferogram (Descending Pass) (Track 121) for the recent seismic in #China with a magnitude of Mw 7.1, is available on @epos-es.bsky.social geoportal @fraxinsar.bsky.social
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Stéphane Baize @stef-eq-geology.bsky.social · 26/12/2024
Contribution of seismology to history: the case of the 1973 Coup d’état in Chile pubs.geoscienceworld.org/ssa/srl/arti...
pubs.geoscienceworld.org
Decoding the Narrative of the Chilean coup d’état Through the Seismograms of September 1973 | Seismological Research Letters | GeoScienceWorld
Abstract. This study reveals the seismic signature of the 1973 Chilean coup d’état by analyzing historical paper seismograms from September 1973. The
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Stéphane Baize @stef-eq-geology.bsky.social · 24/12/2024
Dans quelques jours, l'Institut de Radioprotection et Sûreté Nucléaire disparaît, pour fusionner avec l'Autorité de Sûreté Nucléaire. Dans ce nouveau changement, une entité survit comme depuis sa création il y a 50 ans, surmontant toutes les réorganisations : mon laboratoire, le BERSSIN. Fier 👍
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Stéphane Baize @stef-eq-geology.bsky.social · 17/12/2024
A series of free papers (until 30/12) on #seismicity triggered by dams and reservoirs www.seismosoc.org/civicrm/mail...
seismosoc.org
Seismic History: A Look Back December 2024
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Magali Reghezza @magalireghezza.eurosky.social · 15/12/2024
Le cyclone #Chido, classé en catégorie 4, a dévasté l’archipel de Mayotte le 14 décembre 2024, avec des vents soufflants à plus de 220 km/h. C’est le cyclone le plus important depuis 1934. Le dernier cyclone majeur datait de 1984. Un 🧵 [1/24] 👇
Chido
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Stéphane Baize @stef-eq-geology.bsky.social · 14/12/2024
Brillant PhD thesis defense yesterday, after 3 years on such a tough topic: paleoseismology of a slow active fault in SE France. That was such a great experience to supervise your work Nicolas. Congratulations Dr Cathelin 🍾👍
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Rob Langridge @aotearoa-unzpd.bsky.social · 11/12/2024
Last weekend we had an amazing campaign on the Alpine-Wairau (Big) Bend of the Alpine Fault, Glenroy River. Thanks to @jameslagreca.bsky.social Liv & Alex for doing the mahi. We located THE one and only Alpine Fault outcrop in the valley and also sampled the Glenroy rock avalanche. Still buzzing!
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Rob Langridge @aotearoa-unzpd.bsky.social · 11/12/2024
New Zealand's Geological Masterpiece www.youtube.com/watch?v=VNPn... A cool video ad by Julian Thompson
youtube.com
New Zealand's Geological Masterpiece
YouTube video by Out There Learning
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faultcreeper.bsky.social @faultcreeper.bsky.social · 11/12/2024
Quick recap from todays recon of yesterdays M5.8 earthquake. Bottom line: no surface rupture observed after several transects across aftershock pattern.  Lack of any surface cracking in epicentral area. Minor bank failures, lateral spread, and liquefaction features along Walker river.
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Stéphane Baize @stef-eq-geology.bsky.social · 06/12/2024
Impact of deglaciation on fault slip. I could only read the abstract right now, but this paper seems quite interesting. pubs.geoscienceworld.org/gsa/geology/...
pubs.geoscienceworld.org
Exploring the impact of deglaciation on fault slip in the Sangre de Cristo Mountains, Colorado, USA | Geology | GeoScienceWorld
Few natural examples exist where climate’s influence on tectonics is clear. Based on a study of the Sangre de Cristo Mountains in southern Colorado, we
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Reposted by Stéphane Baize
Bertrand Delouis @bertranddelouis.bsky.social · 05/12/2024
First update of slip model for M 7.0 - 2024 Offshore Cape Mendocino, California Earthquake. Using closest stations (dist < 200 km). Still no selection of fault plane (both nodal planes shown). SLIPNEAR method.
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Stéphane Baize @stef-eq-geology.bsky.social · 05/12/2024
A new paleo-#Earthquake study on the eastern edge of the Upper Rhine Graben www.sciencedirect.com/science/arti...
sciencedirect.com
Active faulting of the southern segment of the Rhine River Fault, southern Germany: Geomorphological and paleoseismological evidence
Our study focuses on the southern segment of the Rhine River Fault, located in one of the most seismically active regions in intraplate Europe, at the…
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Stéphane Baize @stef-eq-geology.bsky.social · 04/12/2024
During his Master, Nicolas estimated the uplift rate around the Cévennes fault system (responsible for the 2019 M5 Le Teil #earthquake in SE France). He used 3He cosmogenic dating of fluvial terraces including basalt pebbles. journals.openedition.org/quaternaire/...
journals.openedition.org
Using cosmogenic 3He and radiocarbon dating for incision and uplift...
1 - Introduction Metropolitan France is a stable continental region characterized by slow deformation. A recent study by Masson et al. (2019) proposed a horizontal deformation of 0.5 - 1.0×10-9 m.y...
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Stéphane Baize @stef-eq-geology.bsky.social · 04/12/2024
New results on the deep structure of the Cévennes #fault system, responsible for the 2019 M5 le Teil surface-rupturing #earthquake in SE France. Congrats (young) Dr Thomasset!!! www.bsgf.fr/articles/bsg...
bsgf.fr
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CNRS @cnrs.fr · 23/11/2024
A l’occasion des 50 ans de la découverte, le 24 novembre 1974, de #Lucy squelette partiel d’australopithèque daté de 3,2 millions d’années, Sonia Harmand, archéologue préhistorienne au CNRS, dévoile trois faits méconnus sur cette ancêtre de l’humanité. www.cnrs.fr/fr/actualite...
cnrs.fr
Trois faits méconnus sur Lucy, ancêtre de l’humanité
A l’occasion des 50 ans de la découverte de Lucy, squelette partiel d’australopithèque daté de 3,2 millions d’années, Sonia Harmand, archéologue préhistorienn
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Rob Langridge @aotearoa-unzpd.bsky.social · 24/11/2024
An exciting PhD opportunity has come up w/ the Ngā Ngaru Wakapuke program in"Understanding earthquake sequences using near- and on-fault paleoseismology on the western Marlborough Fault System". To work with leading paleoseismologists from VUW (J Howarth) & GNS. Contact k.clark@gns.cri.nz for pdf
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Stéphane Baize @stef-eq-geology.bsky.social · 23/11/2024
Testa et al.: Application of a recent investigation on an Italian active fault to evaluate the #earthquake hazard at a dam (PFDHA) www.sciencedirect.com/science/arti...
sciencedirect.com
Probabilistic fault displacement Hazard analysis in an extensional setting: Application to a strategic Dam and methodological implications
We present a Probabilistic Fault Displacement Hazard Analysis (PFDHA) for a strategic dam located in the Upper Tiber Valley (Northern Apennines of Ita…
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Stéphane Baize @stef-eq-geology.bsky.social · 22/11/2024
Large-scale #FridayFold in Portillo, close to the Argentina-Chile border, Abanico Fm (Oligocene) (a place that @rlacassin.bsky.social knows much better than me 👍)
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Stéphane Baize @stef-eq-geology.bsky.social · 21/11/2024
A taste of winter in Paris 🇫🇷
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Stéphane Baize @stef-eq-geology.bsky.social · 16/11/2024
And we don’t forget the Upper Rhine Graben, with #earthquakes and #paleoearthquakes!!! www.sciencedirect.com/science/arti...
sciencedirect.com
Surface rupturing earthquakes along the eastern Rhine Graben Boundary Fault near Ettlingen-Oberweier (Germany)
The eastern Rhine Graben Boundary Fault (eastern RGBF) forms the eastern margin of the Upper Rhine Graben (URG), the most seismically active area in t…
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Henning @geohenning.bsky.social · 13/11/2024
I recommend this short video with @aotearoa-unzpd.bsky.social about the landscape changes after the earthquake! (5/5) youtu.be/tzh0_CibQzY?...
youtu.be
The Many Faces of the Papatea Fault
YouTube video by GNS Science
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Stéphane Baize @stef-eq-geology.bsky.social · 13/11/2024
Interested in intraplate tectonics? We propose a session on #earthquake faults and deformation in SE Europe at @EGU General Assembly meetingorganizer.copernicus.org/EGU25/sessio.... Abstract submission: deadline 15/01. Opportunities of travel support: deadline 02/12
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Stéphane Baize @stef-eq-geology.bsky.social · 25/10/2024
On recherche un/e étudiant/e de Master 2 pour un stage de recherche sur la paléosismologie du lac d'Antre... et plus si affinités!
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Stéphane Baize @stef-eq-geology.bsky.social · 25/10/2024
A synthesis of the #patadays2024 in Chile 🇨🇱 uchile.cl/noticias/221...
uchile.cl
80 científicos del mundo escarbaron el registro geológico de Chile en importante conferencia de Geología de terremotos - Universidad de Chile
La Conferencia PATA Chile 2024 (Paleoseismology, Active Tectonics and Archaeoseismology) tuvo a la U. de Chile como institución organizadora, en colaboración con otras i
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Stéphane Baize @stef-eq-geology.bsky.social · 20/10/2024
theconversation.com/clues-left-b...
theconversation.com
Clues left by the Alpine Fault’s last big quake reveal its direction – this will help NZ prepare for the inevitable next rupture
New research shows the last big earthquake on the Alpine Fault ran from south to north. With a 75% chance of another rupture in the next 50 years, this improves how we can forecast its impact.
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Stéphane Baize @stef-eq-geology.bsky.social · 20/10/2024
The Darwin forest at Agua de la Zorra, near Uspallata, Mendoza 🇦🇷, belongs to the Paramillo Formation of the Triassic Cuyo Basin (#patadays24 post-conference field trip) ri.conicet.gov.ar/handle/11336...
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Stéphane Baize @stef-eq-geology.bsky.social · 19/10/2024
This outcrop with active Andean thrust deserved two US legends of #earthquake #geology. Could you recognize them?
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paleoseismicity.org @paleoseismicity.bsky.social · 17/10/2024
There'll be a session on archeoseismology at SAHC2025, September 2025, but the deadline is quite soon. paleoseismicity.org/session-on-a...
paleoseismicity.org
» Session on archeoseismology at SAHC2025
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Stéphane Baize @stef-eq-geology.bsky.social · 14/10/2024
Cactus of the Andes foothills close to Mendoza
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Rob Langridge @aotearoa-unzpd.bsky.social · 14/10/2024
Another PATA Day in NW Argentina 🇦🇷. Gracias to King Carlito Costa for the tour of the Las Peñas thrust. We're based in Mendoza for 2 nights. Having a quiet one with mates @faultcreeper.bsky.social and @stef-eq-geology.bsky.social
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Rob Langridge @aotearoa-unzpd.bsky.social · 13/10/2024
A post-PATA field trip across the Andes! OK sure. How do I choose 4 of the best photos?
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Rob Langridge @aotearoa-unzpd.bsky.social · 12/10/2024
Thanks Marco Cisternos for a field skills class on Chilean tsunami deposits N of Valparaiso in the famous tsunami gap. #PataDays2024. At right is a chemical peel of the wall highlighting the 1730 CE tsunami sand...i think
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