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Reposted by Baptiste Gombert

Robin Lacassin @rlacassin.bsky.social · Sep 1

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. ⚒️

Earthquake information from Geoscope Observatory @geoscope-ipgp.bsky.social · Aug 31

Mw=6.0, SOUTHEASTERN AFGHANISTAN (Depth: 8 km), 2025/08/31 19:17:34 UTC - Full details here: http://geoscope.ipgp.fr/scripts/seismes/fiche.php?seis=us7000qsvj

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Reposted by Baptiste Gombert

Angel Ruiz-Angulo @rocangel.bsky.social · Aug 11

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

Baptiste Gombert @baptistegomb.bsky.social · Aug 11

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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Baptiste Gombert @baptistegomb.bsky.social · Aug 11

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 · Jul 30

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.

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Dr. Judith Hubbard @judithgeology.bsky.social · Jul 30

⚒️ 🧪

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.

M8.8 earthquake strikes offshore Kamchatka

A dangerous subduction megathrust ruptures once again

earthquakeinsights.substack.com

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Colin Stark @cstark.bsky.social · Jul 30

Simulated propagation of tsunami generated by Kamchatka M8.8 earthquake. Generated by NCDR, Taiwan. 🧪⚒️⚛️

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Magali Reghezza @magalireghezza.bsky.social · Jun 18

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?

🤢🤢🤢

Etienne Farget 🌩️ @meteorre.net · Jun 16

🌡️ Vague de chaleur à surveiller à partir de jeudi: la température va monter progressivement. Préservez dès maintenant le frais dans vos logements !

Apprenez les bons gestes:

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Prof Dan Parsons @bedforms.bsky.social · May 16

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 · May 12

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 · Apr 29

So not "altimetry-on-river" related as it is an output of my previous job, but worth sharing nonetheless :)

Baptiste Gombert @baptistegomb.bsky.social · Apr 29

In this paper we discuss the origin of this speckle and strategies that can be used to characterize and remove its energy spectrum, ultimately leading to better ocean wave spectra retrieval. DM me for a copy!

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Baptiste Gombert @baptistegomb.bsky.social · Apr 29

CFOSAT is dedicated to the measurement of directional spectra of ocean waves, but like any radar it is strongly affected by speckle noise.

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Baptiste Gombert @baptistegomb.bsky.social · Apr 29

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 · Apr 2

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 · Apr 2

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 · Apr 2

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 · Apr 1

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 · Apr 1

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 · Apr 1

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 · Mar 30

🧪⚒️

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...

Updates on the M7.7 Myanmar earthquake

An unusually long, possibly supershear rupture

earthquakeinsights.substack.com

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Dr. Judith Hubbard @judithgeology.bsky.social · Mar 29

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 · Mar 28

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 · Mar 28

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 · Mar 28

Surface waves are still rolling through on my broadband in NZ:

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Bertrand Delouis @bertranddelouis.bsky.social · Mar 28

First slip map for the Mw 7.8 Myanmar earthquake. Propagation of rupture towards the South. Slipnear method (Géoazur/OCA).

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