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Melaine Le Roy @subfossilguy.bsky.social · 29/08/2026

Latest high resolution drone pictures of the source area of the rock ice avalanche that triggered the Nepal flood! 🧊🌊 📷 Guoxiong Zheng

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Dr Dan Shugar 🇨🇦 @watershedlab.bsky.social · 26/08/2026

The source of the flood in Nepal is a collapsed glacier 🧪⚒️

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Stephen Hicks @seismo-steve.bsky.social · 27/08/2026

Dreadful scenes from the devastating Rasuwa flood in Nepal/Tibet. My heart goes out to everyone affected. It likely began with a glacier collapse / rock–ice avalanche recorded by seismometers worldwide. I hope real-time seismic monitoring can support early warning for communities downstream.

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Dr. Judith Hubbard @judithgeology.bsky.social · 28/07/2026

⚒️ 🧪 A M6.8 earthquake struck Kyushu, Japan today. Large quakes in Japan are common and often pass without much notice, but this one is serious - instead of occurring offshore in the subduction zone, it is a shallow, strike-slip event near Kumamoto. Damage and deaths have already been reported.

earthquakeinsights.substack.com

Southern Japan struck by deadly M6.8 earthquake

A reminder of the neighboring 2016 Kumamoto M7.0 earthquake

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Earthquake information from Geoscope Observatory @geoscope-ipgp.bsky.social · 25/06/2026

Mw=7.8, NEAR COAST OF VENEZUELA (Depth: 12 km), 2026/06/24 22:04:32 UTC - Full details here: geoscope.ipgp.fr/scripts/seismes/fi…

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Bertrand Delouis @bertranddelouis.bsky.social · 25/06/2026

Auto slipmap with regional records (SLIPNEAR method, Géoazur/OCA) M 7.5 - VENEZUELA - 2026-06-24 22H04 UTC (MT solution from GFZ) A single earthquake is assumed (doublet not separated) EW Rupture plane identified at 100% Rupt propagation largely to the east Thanks to seismic records through IRIS

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Claudio Satriano @claudio.seismicsource.org · 10/03/2026

A rare, ultra deep earthquake (~400 km) in the Gulf of Naples!

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RAS Journals @rasjournals.bsky.social · 20/01/2026

Published in #GJI Geophysical Journal International: "Source parameters of very low frequency events during the Mayotte seismo-volcanic crisis (May 2018–January 2022)", Laurent et al. This is Fig. 1: please visit academic.oup.com/gji/article/... to read the paper. @royalastrosoc.bsky.social

Volcanic features offshore Mayotte and seismic/hydrophone stations used. The network includes four onshore broad-band (BB) stations (black), one accelerometer (red) and multiple ocean-bottom hydrophones (OBH, orange). Offshore stations combine deployments MAYOBS1 (Feb–May 2019) and MAYOBS2 (May–Oct 2019). An asterisk (e.g. MOC*⁠) marks instruments redeployed across campaigns. P-T is Petite-Terre, east of Mayotte’s main island. Geomorphological boundaries and volcanic features (shaded areas in the bathymetry) follow N. Feuillet et al. (2021); V. Puzenat et al. (2022). Bathymetry is from MAYOBS campaigns (S. Jorry 2019).

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Earthquake information from Geoscope Observatory @geoscope-ipgp.bsky.social · 08/12/2025

Mw=7.6, NEAR EAST COAST OF HONSHU, JAPAN (Depth: 45 km), 2025/12/08 14:15:11 UTC - Full details here: geoscope.ipgp.fr/scripts/seismes/fi…

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Jason "Jay" R. Patton @earthjay.bsky.social · 30/07/2025

#EarthquakeReport for M8.8 #Earthquake offshore of #Kamchatka #Russia tied 8th largest magnitude temblor instrumentally recorded @USGS_Quakes finite fault slip model 8+ meters slip similar to 1952 M9 learn about tectonics here: earthjay.com?p=12053 earthquake.usgs.gov/earthquakes/...

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Jascha Polet @jascha.bsky.social · 02/06/2025

Pyroclastic flows at Etna have been confirmed by INGV ⚒️🌋

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Simeon Schmauß @stim3on.bsky.social · 01/06/2025

I also derived a new elevation model from the aerial images, allowing me to visualize the elevation change in the affected areas. The rocks and debris in the valley are locally up to 32m thick and I estimate the total displaced volume is about 11 million cubic meters. #Blatten

Map of the Lötschtal showing the area affected by the glacier collapse.
Blue colors show lost elevation, red areas elevation gains.
The two most notable areas are the collapsed peak of Kleines Nesthorn and the collapsed glacier which are shown in deep blue with elevation loss of up to 128m and 51m respectively.
The material slid down the mountain in an approximately 400m wide path and accumulated in a 2,5km long area on the valley floor which is up to 32m thick.
The newly formed lake above the village of Blatten is also drawn in.

The Map text reads:
Kleines Nesthorn and Birchgletscher collapse / Blatten im Lötschental (VS)
On Wednesday, May 28th, a2025, the Birchgletscher glacier collapsed under the weight of rock and debris following the partial collapse of the Kleines Nesthorn.
Approximately 10 million cubic meters of debris flowed into the valley, burying large parts of the villages of Blatten and Ried. The debris also blocked the Lonza River, forming a small lake that destroyed several more houses in Blatten.
Analyis
Using Oblique imagery collected and provided by swisstopo on May 30th, 2025, a photogrammetric DEM was created and compared to the swissALTI3D DEM.

The following volume change was measured in the affected area:
Above Volume (m³): 11.2 Mio
Below Volume (m³): 10.1 Mio

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Dr. Lucile Bruhat @seismolucy.bsky.social · 13/04/2025

"we explain the ”unusual” waveform signature of the Myanmar earthquake by a multiple, asymmetric bilateral rupture, involving boomerang-like back-rupture propagation and supershear." Preprint by Inoue, et al. about the Myanmar quake eartharxiv.org/repository/v... ⚒️🧪

eartharxiv.org

A multiple asymmetric bilateral rupture sequence derived from the peculiar tele-seismic P-waves of the 2025 Myanmar earthquake

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Seismica @weareseismica.bsky.social · 02/04/2025

Achieving Success in Seismic Network DOIs for data sharing and attribution! The seismological community strategy is a success, citations improved and licensing is starting. In this paper Pedersen et al., propose recommendations for the way forward Read now: seismica.library.mcgill.ca/article/view...

This work was funded by: European Commission, Horizon Europe project 101058518 Geo-Inquire - European Plate Observing System EPOS - US National Science Foundation CSA Award No. 2310069 - New Zealand Government: Natural Hazards Commission Toka Tū Ake (NHC), GNS Science Te Pū Ao, Toitū Te Whenua Land Information New Zealand (LINZ), the National Emergency Management Agency (NEMA) and the Ministry of Business, Innovation and Employment (MBIE) - Australian National Collaborative Research Infrastructure Strategy (NCRIS)

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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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Tom Gabrieli @tgabrieli.bsky.social · 30/03/2025

Very (very) rough analysis indicates >6 m of slip. I resolve pixel offset using DIC in experimental cm sized samples with speckle pattern, and never used it before on satellite images. However the dextral offset is pretty clear, and I trust my calibration so the slip magnitude should be about right.

Heat map of N-S displacement at Sagaing, Myanmar, before and after the March 2025 earthquake. The right east (right) side was displaced northward by about 2 m while the west side was displaced southward by about 4.5 m, indicating 6.5 m of N-S slip along a rupture that bisects the city.

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Lukas Rentz @lukasrentz.bsky.social · 30/03/2025

First Satellite Images from Myanmar are available. Surface Deformation along the Sagaing Fault and the collapsed Ava.Bridge are visible in Downtown Sagaing. Pictures and Videos from the Surface Rupture have been reported since Friday. Via browser.dataspace.copernicus.eu #Myanmar #Earthquake

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Earthquake information from Geoscope Observatory @geoscope-ipgp.bsky.social · 30/03/2025

Mw=7.1, TONGA ISLANDS (Depth: 16 km), 2025/03/30 12:18:43 UTC - Full details here: geoscope.ipgp.fr/scripts/seismes/fi…

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Gilles Mazet-Roux @gmazet.bsky.social · 28/03/2025

The fault involved in the M7.7 earthquake in #Myanmar is well known but the #Mandalay area didn't show much seismic activity so far.

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Lidong Bie @lidongbie.bsky.social · 28/03/2025

Looking at the historical earthquake map and the preliminary USGS slip model below, it seems today's large earthquake filled partly the gap between 20 and 22 degrees North latitude.

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Earthquake information from Geoscope Observatory @geoscope-ipgp.bsky.social · 28/03/2025

Mw=7.9, MYANMAR (Depth: 35 km), 2025/03/28 06:20:54 UTC - Full details here: geoscope.ipgp.fr/scripts/seismes/fi…

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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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Bertrand Delouis @bertranddelouis.bsky.social · 25/03/2025

Rapport scientifique et technique d'étape sur le séisme de magnitude 4.1 du 18 mars 2025 au nord de Nice, commune de Coaraze, et la séquence sismique qui a suivi. sismoazur.oca.eu/static/doc/s... sismoazur.oca.eu#/specific_re...

sismoazur.oca.eu

Sismoazur

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Bertrand Delouis @bertranddelouis.bsky.social · 19/03/2025

Revised source inversions of the Ml4.1 and Ml3.8 shocks that occurred on March 18, 2025 just north of the city of Nice in southern France.

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Earthquake information from Geoscope Observatory @geoscope-ipgp.bsky.social · 21/03/2025

Mw=6.2, SOUTH OF PANAMA (Depth: 13 km), 2025/03/21 14:50:51 UTC - Full details here: geoscope.ipgp.fr/scripts/seismes/fi…

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Jason "Jay" R. Patton @earthjay.bsky.social · 11/03/2025

#EarthquakeReport #TsunamiReport for #OTD in 2011 M9.1 #Earthquake offshore of #Japan generated 50+m of megathrust fault slip produced local and transpacific #Tsunami learn more earthjay.com?p=9773 and @calconservation.bsky.social @cageosurvey.bsky.social storymaps.arcgis.com/stories/d230...

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Observatoire volcanologique du Piton de la Fournaise @ovpf.bsky.social · 06/03/2025

🌀 Les stations de l'OVPF-IPGP n'ont pas été épargnées par les vents cycloniques de #Garance: stations détruites, panneaux solaires brisés, antennes cassées, portes de coffret arrachées... 👨‍🔧Les équipes restent mobilisées pour remettre en état ce réseau et évacuer prochainement les stations détruites.

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Anthony Lomax @alomaxnet.bsky.social · 04/03/2025

And now for something completely different: bsky.app/profile/wear...

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Seismica @weareseismica.bsky.social · 03/03/2025

@alomaxnet.bsky.social (Lomax) uses aftershocks as virtual observations at the depth of rock deformation surrounding an earthquake rupture to image in 3D the fault slip during the earthquake. Read more: seismica.library.mcgill.ca/article/view...

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Observatoire volcanologique du Piton de la Fournaise @ovpf.bsky.social · 03/03/2025

🌀Situation post-cyclone #Garance. Grâce à la forte mobilisation des équipes de l’OVPF-IPGP, l’observatoire a de nouveau le contact avec 65% de ses stations sur le terrain (contre 15% à la fin du cyclone). L'OVPF-IPGP reste mobilisé pour remettre en état ce réseau le plus rapidement possible.

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Observatoire volcanologique et sismologique de Martinique @ovsm.bsky.social · 03/03/2025

Un séisme de magnitude 5.0)a été enregistré le dimanche 02 mars 2025 à 20:01 (heure locale) et identifié d'origine Tectonique. L'épicentre a été localisé à 57 km à l'est-nord-est de Trinité, à 46 km de profondeur. Si vous avez ressenti ce séisme, merci de témoigner sur www.franceseisme.fr

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Anthony Lomax @alomaxnet.bsky.social · 03/03/2025

NLL-SSST-coherence high-precision earthquake location catalog for the 2025 #Santorini #Amorgos #earthquake swarm. Based on data from Institute of Geodynamics of the National Observatory of Athens (NOA-IG). Download & details: doi.org/10.5281/zeno...

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Seismica @weareseismica.bsky.social · 01/03/2025

Di Giacomo et al. had a fresh look at the time-dependent uncertainty related to early analog instrument picks. Their findings translate into a more reliable location uncertainty estimation. @iscseism.bsky.social Read now: seismica.library.mcgill.ca/article/view...

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Bertrand Delouis @bertranddelouis.bsky.social · 28/02/2025

Auto solution FMNEAR (Géoazur/OCA) with regional records for the M 4.0 – SOUTH SPAIN, 2025-02-27 02:29:32.3 UTC (Loc EMSC used to trigger inversion) sismoazur.oca.eu#/focal_mecha... emsc-csem.org/Earthquake_d... Thanks to the seismic records from Spain and Portugal provided through IGN and IRIS

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Observatoire volcanologique du Piton de la Fournaise @ovpf.bsky.social · 28/02/2025

🌀 Le cyclone #Garance se rapproche de La Réunion. Depuis hier, le bruit sismique sur les stations du réseau de l’OVPF-IPGP augmente en lien avec le renforcement de de la houle. 💻 A distance pendant l'alerte la surveillance du Piton de la Fournaise se poursuit.

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Jannes Münchmeyer @jannesmunch.bsky.social · 26/02/2025

Our paper on QSeek is out in Seismica now. QSeek detects earthquakes and locates them precisely by backprojecting deep learning phase probability curves in time and space. And that at a blazingly fast speed! Thanks Marius Isken for this great work!

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Bertrand Delouis @bertranddelouis.bsky.social · 17/02/2025

Revised solution FMNEAR (Géoazur/OCA) with regional records for the M 4.8 - PORTUGAL, 2025-02-17 13:24:03.9 UTC (Loc EMSC used to trigger inversion). Mw 4.4 Joint inversion of waveforms and first motions. Thanks to the seismic records provided from Portugal through IRIS

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Kristín Jónsdóttir @krjonsdottir.bsky.social · 15/02/2025

Again: Live "waterfall" DAS-streaming. The unit is now set to record 2 fibers, from Keflavík to Reykjavík (left) and from Kef along the south coast to Þorlákshöfn (right). It is the first time we see what is going on along the fiber north of Svartsengi and Grindavík. Next eruption expected any day!

youtube.com

Veðurstofa Íslands Live Stream

YouTube video by Veðurstofa Íslands

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Dr. Judith Hubbard @judithgeology.bsky.social · 15/02/2025

There was an extended period of more-or-less continuous tremor near Santorini last night. Confirmed by the EMSC on Twitter.

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Claudio Satriano @claudio.seismicsource.org · 14/02/2025

Moment magnitudes and corner frequencies calculated for 437 events from the Santorini crisis (Ml>3.5, Jan 24 - Feb 13) using SourceSpec. Big thanks to the EIDA node of the National Observatory of Athens for keeping their services online during this critical period. sourcespec.seismicsource.org

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Jannes Münchmeyer @jannesmunch.bsky.social · 10/02/2025

Here you go! I picked a few of the burst migration speeds by hand and they are in the range of 2 km/h.

Earthquake activity over distance along the transect. Both the large-scale migration and fine-scale burst migrations in both directions are visible.

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Jannes Münchmeyer @jannesmunch.bsky.social · 10/02/2025

Hi Seismo-Bluesky! I decided to test a pipeline with SeisBench, PyOcto, NonLinLoc, and HypoDD on the Santorini sequence. The level of activity (>4,500 events) is truly stunning! There are repeated bursts migrating backwards and forwards, spreading outwards from a narrow, almost linear channel.

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Gilles Mazet-Roux @gmazet.bsky.social · 10/02/2025

Updated map of seismicity between #Santorin and #Amorgos + Gutenberg-Richter distribution.

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Floris Strijbos @efpeel.bsky.social · 08/02/2025

Experts interpret the #santorini earthquake swarm to be primarly caused by tectonic processes. One of the attributes to distinguish earthquakes associated with volcanisms from these tectonic processes is the distribution of earthquake magnitudes. (1/6)

Magnitude distribution for the Grindavik volcanic earthquake swarm, the Tyrnavos tectonic earthquake sequence and the January and February Santorini earthquakes

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Temblor, Inc. @temblorinc.bsky.social · 10/02/2025

A M7.6 earthquake struck SW of George Town, the capital of the Cayman Islands. This offshore quake occurred on a strike-slip fault. In this short news report, Temblor scientists consider which faults have been brought closer to failure. temblor.net/temblor/magn...

temblor.net

Magnitude 7.6 earthquake strikes offshore fault near the Cayman Islands - Temblor.net

A relatively shallow, left-lateral strike-slip event struck on a fault zone that bounds the Caribbean plate.

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Jason "Jay" R. Patton @earthjay.bsky.social · 09/02/2025

#EarthquakeReport for M7.6 #Earthquake #Sismo #Terremoto near #CaymanIsland Left-lateral strike-slip earthquake along Swan Island fault #Tsunami observation at Isla Mujeres See 2020 report for tectonic background earthjay.com?p=9322 earthquake.usgs.gov/earthquakes/...

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Anthony Lomax @alomaxnet.bsky.social · 08/02/2025

High-precision relocation of earthquake activity offshore Santorini, Greece (2024-01-01 to today).

Map of earthquakes offshore Santorini, Greece 2024-01-01 to 2025-02-08. Color show earthquake occurrence times. High-precision relocations done with NLL-SSST-coherence and data from the Hellenic Seismic Network, Institute of Geodynamics of the National Observatory of Athens (NOA-IG).

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GFZ Helmholtz-Zentrum für Geoforschung @gfz.bsky.social · 06/02/2025

Some of you were waiting for it: Here's our new data visualisation of the earthquakes near #Santorini, provided by our colleague Marius Paul Isken, and located with pyrocko/qseek. It includes yesterday's quakes and starts January 29. Marius included a nice twist, so to speak. Wait for it.

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Jascha Polet @jascha.bsky.social · 05/02/2025

Animation of earthquakes NE of Santorini by GFZ, showing migration towards the NE. The original post also mentions a current preference for an explanation of this activity as having a magmatic origin. 🧪⚒️

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