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.

This is one of those "wait for it" things: simulation of the #TracyArm landslide tsunami by Pat Lynett for our paper that came out this week in @science.org. This one is from the vantage point of a jetski at sea level. 🧪⚒️ www.science.org/doi/10.1126/...

In light of our recently published @science.org paper about The Tracy Arm landslide, I'm gonna tell a little story about being wrong and how science works. Join me. www.science.org/doi/10.1126/...

A 481-meter-high landslide-tsunami in a cruise ship–frequented Alaska fjord

Early in the morning of 10 August 2025, a >64 × 106 m3 landslide struck Tracy Arm fjord in Alaska. The landslide was preconditioned by glacial retreat caused by climate change. The resulting 481 m run...

science.org

A pleasure to be part of this wonderful, multi-disciplinary team under @watershedlab.bsky.social’s leadership. Great that no one was killed or injured, but crikey it was a near-miss

Dr Dan Shugar 🇨🇦@watershedlab.bsky.social · 5mo ago

🚨New paper about the second largest tsunami ever recorded, just published in @science.org A short 🧪⚒️🌊 thread #EGU26 @ucalgary.bsky.social @ucalgaryscience.bsky.social doi.org/10.1126/scie...

NEW: Magma is a furious mixture of molten rock, crystals and gases. It normally makes lots of noise—but, in 2022, a huge volume of magma snuck up on an island in the Azores without making a sound. Yep: magma has a stealth mode. Me @sciam.bsky.social www.scientificamerican.com/article/a-vo...

A volcanic mystery reveals that rising magma has a stealth mode

In 2022 a swarm of earthquakes in the Azores suggested that an eruption was imminent, but none happened. Now we know why, and it means magma can be sneakier than we knew

scientificamerican.com

Our new paper on a stealthy magma intrusion in the Azores is now out in Nature Communications: www.nature.com/articles/s41... We show how volcanic dikes intruding into faults can both speed up magma ascent and prevent eruption at the surface.

Super cool--the role of (even very small) earthquakes in subsurface microbiology!

PNAS Nexus@pnasnexus.org · 10mo ago

Up to 30% of life, by weight, is underground. Seismic activity may renew the energy supply for subterranean ecosystems by exposing new rock and changing flow paths of water, expanding options for chemolithotrophic bacteria. In PNAS Nexus: https://ow.ly/tp4i50XzuoQ

Some coverage from the BBC on our Santorini swarm paper in Science (www.science.org/doi/full/10....). Features an interactive slider graphic showing the imaged magma dike intrusion using @alomaxnet.bsky.social's Coulomb-based seismicity-stress (CoulSeS) method. www.bbc.co.uk/news/article...

Scientists reveal what triggered Santorini 'earthquake swarm'

Thousands of earthquakes were caused by magma

bbc.co.uk

This figure from a perspective piece on our paper by Virginie Pinel beautifully illustrates our proposed magma-pumping mechanism! www.science.org/doi/10.1126/...

Anthony Lomax@alomaxnet.bsky.social · 10mo ago

New! We study the disruptive 2025 earthquake unrest near #Santorini using machine-learning derived seismicity as virtual stress meters at depth. We show the unrest was due to a magma dike intrusion, imaging in detail a complex, rebounding process of dike propagation. www.science.org/doi/10.1126/...

New! We study the disruptive 2025 earthquake unrest near #Santorini using machine-learning derived seismicity as virtual stress meters at depth. We show the unrest was due to a magma dike intrusion, imaging in detail a complex, rebounding process of dike propagation. www.science.org/doi/10.1126/...

The 2025 Santorini unrest unveiled: Rebounding magmatic dike intrusion with triggered seismicity

Magmatic intrusion in Earth’s crust can lead to hazardous volcanic eruptions, but the physical processes involved remain largely hidden from direct observation. We used machine learning–derived seismi...

science.org

Love it when a plan comes together, and quickly.

Dr Dan Shugar 🇨🇦@watershedlab.bsky.social · last yr.

The greatest part about doing science is working with great people. If you’re in this skeet, you’ll know it. 🧪⚒️

A longer sonification with slower sound rate factor (1000) gives a clearer and more detailed impression of the evolution of the "drumbeat" seismicity, which continues with increasing frequency right up to the largeest (landslide failure?) signal, but not after.

The massive landslide + tsunami in Alaska on Sunday (10 August; earthquake.alaska.edu/major-landsl...) has sent seismic waves all around the world. Body waves visible up to 90°, and surface waves beyond. Record section of Z-component seismic recordings from GSN stations filtered between 25 & 100 s 👇

Crazy (horizontal) runup from the large landslide into Tracy Arm fjord, SE Alaska. This is 20 km out the fjord and the wave reached up to 400 m into this side valley. notice how the vegetation was only wetted for the most part (pixels still red) and only the mouth of the river is destroyed.

The first Seafloor Explorer seminar on June 17th, 15.00 BST, will cover “Recent expedition reports from Santorini”. Speakers: Jonas Preine (WHOI, US), Michele Paulette (Imperial College London, UK) and Jens Karstens (GEOMAR, DE). Registration info: seafloor-explorer.github.io/seafloor/sem...

Seminar 1 | Seafloor Explorer

Seminar 1

seafloor-explorer.github.io

We're pleased to announce the Seafloor Explorer online seminar series on marine geoscience. The seminars will be on the 3rd Tues of each month. The 1st will be on June 17th 2025 @ 1500 BST, and will on recent unrest at Santorini. All info, sign-up & speaker suggestions: seafloor-explorer.github.io

Seafloor Explorer | Online Seminar Series

Seminar series focused on ocean tectonics - geophysics, geochemistry, geology - and associated bio-geological processes.

seafloor-explorer.github.io

Cool to see this paper out that uses a NASA SWOT altimeter to observe the 9-day water sloshing in Greenland triggered by a landslide tsunami that sent seismic waves around the world. A great effort that independently backs-up & substantially builds upon our prev work www.nature.com/articles/s41...

Observations of the seiche that shook the world - Nature Communications

The Surface Water Ocean Topography mission observed week-long earth-shaking waves formed by landslide-induced tsunamis in an East Greenland fjord. Connecting these observations with seismic data confi...

nature.com

Nice to see our Greenland seismic-seiche paper still getting some attention :)

Mike Sowden@mikeachim.bsky.social · last yr.

OK, this is wild. In September 2023, geophysicists across the world started monitoring a very odd signal coming from the ground under them. It was picked up in the Arctic. And Antarctica. It was detected everywhere, every 90 seconds, as regular as a metronome, for *nine days*. What the HELL? 1/

Amazing - I think this may be the only footage in existence of real-time slip on a fault. ⚒️ 🧪

Douwe van Hinsbergen@vanhinsbergen.bsky.social · last yr.

This is mind-blowing! I have never seen footage of the slip that occurs during an earthquake! Here you see the slip that occurred during the Myanmar earthquake. 🤯 www.youtube.com/watch?v=77ub...

Anchor Bolts xkcd.com/3078

This morning's M6 Istanbul earthquake was preceded by a M3.9 foreshock ~35 minutes before deprem.afad.gov.tr/last-earthqu...

Detecting whales in the Atlantic Ocean using on-land seismometers in Ireland, including low-cost RaspberryShake sensors. Very cool! www.nature.com/articles/s41...

Fin whale song recordings by onshore seismometers open new horizons for cetacean coastal monitoring - Scientific Reports

Scientific Reports - Fin whale song recordings by onshore seismometers open new horizons for cetacean coastal monitoring

nature.com

Who says reviewers can't find the time these days? 😀 #AcademicHeresy

Pablo J. González@pablojglez.bsky.social · last yr.

Amazing reviews (very detailed and super-useful) on a manuscript sent 3 months ago. Worth any moment of waiting when we know now that the study will be stronger after considering those independent points of views. Thanks for your time community! We must protect the peer-review system.

M6.9 strike-slip quake just now on the active transform fault part of the Charlie Gibbs fracture zone in the N. Atlantic. M~7 is the typical max magnitude of ocean transform events. The active Charlie-Gibbs fault is ~150 km long - a decent portion likely ruptured. earthquake.usgs.gov/earthquakes/...

Wow!!!!!! Looks like it's the longest recorded surface rupture, surpassing the Mw 7.8 2001 Kunlun earthquake

@zaxonlee.bsky.social · 2y ago

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

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.

Reykjanes peninsula, SW Iceland - new fissure eruption is underway www.youtube.com/watch?v=faH3...

BSky hivemind: does anyone know how to plot faults (e.g., with triangular ticks for thrust fronts - like the white line in the map below) with Python/Matplotlib? I know I could do this with PyGMT but I'm trying to work with "raw" figure axes from Matplotlib.

Friday's M7.7 Mandalay, Myanmar earthquake - do we need to rethink earthquake hazard models? A little summary and discussion - hopefully in relative simple terms - by me, over on LinkedIn: www.linkedin.com/posts/sphick...

Friday's M7.7 Mandalay, Myanmar earthquake - do we need to rethink… | Stephen Hicks

Friday's M7.7 Mandalay, Myanmar earthquake - do we need to rethink earthquake hazard models? Hours after Friday's earthquake, media reports focussed on the…

linkedin.com

Horrendous. These poor people.