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Baptiste Gombert

@baptistegomb.bsky.social
150 followers 140 following 10 posts

Satellite Hydrology Specialist at CNES🛰️, but also with strong interests in seismology, tectonics, geophysics... and mountaineering!

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Reposted by Baptiste Gombert
Magali Reghezza @magalireghezza.eurosky.social · 27/06/2026
La canicule se termine. ✅ quelle surprise : fait ✅ chercheurs sollicités : fait ✅ chercheurs attaqués : fait ✅ polémique : fait ✅ solution simpliste : fait ✅ récup : fait ✅ populisme : fait ✅ responsabiliser les gens : fait ❌ inscription à l’agenda démocratique : pas fait. À la prochaine.
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Robin Lacassin @rlacassin.bsky.social · 01/09/2025
Magnitude 6 #earthquake near Jalalabad in E #Afghanistan, close to the border with Pakistan. Mechanism is thrust on a shallow SE or NW dipping fault. General context is the India-Asia collision which placed the region under a N-S shortening. ⚒️
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Angel Ruiz-Angulo @rocangel.bsky.social · 11/08/2025
We are entering a new era for tsunami observations and model validation-- The SWOT era! Thanks a lot @baptistegomb.bsky.social for reaching out, this was a fun collaboration. Also great working with @diegosismologo.bsky.social and @valah.bsky.social. @haskoliislands.bsky.social
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Baptiste Gombert @baptistegomb.bsky.social · 11/08/2025
Superb observation by the SWOT altimetry satellite of the July 30 #tsunami. Data acquired ~1h after the M8.8 Kamchatka earthquake show the waves propagating across the Pacific with a great agreement with @rocangel.bsky.social's model! [more here](www.aviso.altimetry.fr/fr/missions/...) #CNES #CLS
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Jascha Polet @jascha.bsky.social · 30/07/2025
The aftershock zone of today’s M8.8 Kamchatka megathrust #earthquake is comparable to the rupture area of the 1952 rupture zone from Macinnes et al. (2010). At a rate of 8 cm/year, the accumulated slip of 6 m since 1952 matches with the preliminary rupture model of today’s earthquake pretty well. 🧪⚒️
Earthquake sequences of Kamchatka this month. Pink is M8.8 aftershock sequence.Macinnes et al. (2010) rupture zones
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Dr. Judith Hubbard @judithgeology.bsky.social · 30/07/2025
⚒️ 🧪 A M8.8 earthquake just ruptured the subduction zone offshore Russia’s Kamchatka peninsula. This is one of the world’s truly huge earthquakes, and a triggered tsunami is currently traveling across the Pacific ocean. This same fault ruptured on July 20th in a M7.4, and last August in a M7.1.
earthquakeinsights.substack.com
M8.8 earthquake strikes offshore Kamchatka
A dangerous subduction megathrust ruptures once again
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Colin Stark @cstark.bsky.social · 30/07/2025
Simulated propagation of tsunami generated by Kamchatka M8.8 earthquake. Generated by NCDR, Taiwan. 🧪⚒️⚛️
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Magali Reghezza @magalireghezza.eurosky.social · 18/06/2025
Canicule intense dès juin, mais c’est l’écologie qui est punitive. Il est urgent… de détricoter les mesures environnementales. Les sdf, les pauvres, les malades, les retraités, les enfants, les agriculteurs, les ouvriers, victimes de la chaleur, comptent donc si peu pour nos parlementaires? 🤢🤢🤢
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Prof Dan Parsons @bedforms.bsky.social · 16/05/2025
Delighted to see our @NERCscience @EvoFlood project research on changing flood hazard and risk profiled by @theAGU 💜 @lborouniversity eos.org/research-spo...
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Dr. Paula Marques Figueiredo @paleoquake.bsky.social · 12/05/2025
Apparently surface rupture during the Myanmar 2025. I'm very surprised by the weak shaking along the rupture. I'm not sure if this is the main rupture (I would say no - nonetheless, VERY COOL). Author unknown, location Thazi (to be confirmed)
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Baptiste Gombert @baptistegomb.bsky.social · 29/04/2025
Our paper on the speckle noise spectrum of the SWIM instrument aboard the CFOSAT oceanography satellite is online on IEEE TGRS! ieeexplore.ieee.org/document/109...
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Simon Gascoin @sgascoin.bsky.social · 02/04/2025
Sentinel-2 reveals the surface deformation after the 2025 #Myanmar #earthquake www.cesbio.cnrs.fr/multitemp/se...
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Robin Lacassin @rlacassin.bsky.social · 02/04/2025
High resolution MAXAR satellite image reveals the #Myanmar #earthquake surface rupture north of the town of Sagaing. It is close to epicenter and N tip of the >400km long rupture. Right-lateral offset of ~3.2m is clearly illustrated by the distorsion and lateral shift of a dirt road striking E-W.
Left: excerpt of the satellite image. Different fields, dirt roads and paths, houses are visible. The earthquake rupture is visible as darker lines cutting across fields and roads. A clear lateral offset of a dirt road is also visible. To the right, same image with the earthquake rupture mapped in red.
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Gareth Funning @gfun.earth · 02/04/2025
Updated processing from Sentinel-1 data over the #MyanmarEarthquake. Here are azimuth and range offsets, displacements in the indicated lines-of-sight (LOS). The azimuth offsets' LOS is better aligned with the fault strike, hence its larger displacement. Rupture extends ~400 km south of Mandalay.
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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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zaxonlee.bsky.social @zaxonlee.bsky.social · 01/04/2025
Update: Preliminary coseismic displacements of 2025 Myanmar earthquake from @CopernicusEU @ESA #Sentinel2 images by using #CosiCorr, processed by @NTU_TW GEOG #Copernicus 1. Rupture propagated from N to S 2. Max. offset >4m 3. Rupture length ~500km
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Lidong Bie @lidongbie.bsky.social · 01/04/2025
The descending interferogram from Sentinel-1 (20250319-20250331) suggests that the earthquake rupture extends to 18.7 degrees and may have reached further south. More data in the next few days will reveal the full length of the rupture from this devastating earthquake.
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Dr. Judith Hubbard @judithgeology.bsky.social · 30/03/2025
🧪⚒️ Two days after the M7.7 earthquake in Myanmar, what have we learned? Rapid seismological analyses shared by scientists suggest that the rupture was both longer and faster than expected - two factors that could have increased damage. Read more: earthquakeinsights.substack.com/p/updates-on...
earthquakeinsights.substack.com
Updates on the M7.7 Myanmar earthquake
An unusually long, possibly supershear rupture
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Dr. Judith Hubbard @judithgeology.bsky.social · 29/03/2025
The latest models from the USGS show slip, and associated strong shaking, extending much further to the south. Here I have plotted contours of estimated shaking over a map of population density. Note that the fault runs south through a narrow valley that is densely populated. ⚒️ 🧪 Myanmar earthquake
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Jascha Polet @jascha.bsky.social · 28/03/2025
A historical seismicity map shows several #earthquakes of similar size to today’s M7.7 in Myanmar occurred in the region in the early 20th century, but this section of the Sagaing fault probably hasn’t ruptured since 1839 🧪⚒️
Seismicity map of the Myanmar area generated by Jascha Polet using GMT and a myriad of earthquake catalogs
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Danielle Madugo @daniellemadugo.bsky.social · 28/03/2025
The revised focal mechanism is RLSS. Wikipedia has a nice map with the fault sections on it and Ray thinks that is was the section that hasn’t ruptured since 1839.
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Mike Ross @eruptionchaser.bsky.social · 28/03/2025
Surface waves are still rolling through on my broadband in NZ:
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Bertrand Delouis @bertranddelouis.bsky.social · 28/03/2025
First slip map for the Mw 7.8 Myanmar earthquake. Propagation of rupture towards the South. Slipnear method (Géoazur/OCA).
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Jascha Polet @jascha.bsky.social · 09/02/2025
I made a quick map of historical seismicity for the region of today’s M7.6 #earthquake near the Cayman Islands. This left lateral strike slip event occurred on a fault system that produced a few similar events in size & mechanism in the last decade. (Good to see that USGS NEIC is still online!)🧪⚒️
Map of region of today’s M7.6 quake near the Cayman Islands with the current sequence in purple (generated by Jascha Polet)
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Baptiste Gombert @baptistegomb.bsky.social · 20/01/2025
Some beauty for the eyes
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Dr. Eric J. Fielding, PhD @ericfielding.mastodon.social.ap.brid.gy · 21/12/2024
Launch update: #NISAR, a powerful Earth-observing satellite, is targeting a likely launch date in March 2025. The joint @nasa-@IsrO mission will scan nearly all of Earth’s land and ice surfaces to measure changes down to fractions of an inch: blogs.nasa.gov/nisar
blogs.nasa.gov
NASA, ISRO Aiming to Launch NISAR Mission in March 2025
<p>NASA and the Indian Space Research Organisation (ISRO) are looking at a likely launch date in March 2025 for the NISAR satellite. Short for NASA-ISRO Synthetic Aperture Radar, NISAR will scan nearly all of Earth’s land and ice surfaces twice every 12 days to measure changes in the planet’s ecosystems, its land and sea ice, and its solid Earth. The NISAR satellite will launch from Satish Dhawan Space Centre on India’s southeastern coast.</p> <p><strong>News Media Contact<br/> </strong>Andrew Wang<br/> Jet Propulsion Laboratory, Pasadena, Calif.<br/> 626-379-6874<br/> <a href="mailto:andrew.wang@jpl.nasa.gov">andrew.wang@jpl.nasa.gov</a></p>
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Baptiste Gombert @baptistegomb.bsky.social · 13/12/2024
I may post some work related stuffs on deriving rivers water level from altimetry satellites (I know, pretty neat stuff!) or occasionnal reposts on solid earth sciences, or just cool science in general
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Baptiste Gombert @baptistegomb.bsky.social · 13/12/2024
First post here after leaving the hellhole that Twitter has become. I'm exciting to find here what drove me there 8 years ago: many scientists sharing their work with enthusiasm! (Among other things of course!)
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