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...

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

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...

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

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

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...

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

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

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...

Horrendous. These poor people.

Oooof. A massive earthquake at shallow depth pretty much right beneath Mandalay - Myanmar’s second largest city - that has a population of 1.6 million people. This country has gone through so much terrible upheaval over recent years - today’s earthquake could well be catastrophic

Last week, we welcomed >50 UK & international researchers to UCL Earth Sciences and Royal Astronomical Society in London to discuss recent technological and scientific advances in ocean-bottom geophysics and seismology, and to make plans to densely instrument the Atlantic Ocean. Thx to all sponsors!

Your last chance to register for our Ocean Bottom Geophysics meeting on Friday at the Royal Astronomical Society, London. We have an exciting lineup of presentations. You can also join our meeting online. Tickets only £17 for in-person attendance and £6 online - a bargain! ras.ac.uk/events-and-m...

In lighter news, I had no idea there was a mineral in Earth’s mantle called Dave (… sort of)

What does an earthquake look like beneath your feet? This visualization shows seismic waves in action. We’re studying how such visuals improve public communication after major earthquakes. We'd love your input! Please take our short survey & share: ww3.unipark.de/uc/SIOseismi...

Genuine question: given US isolationism policies right now, can we trust that archived seismology datasets and critical realtime data streams at the EarthScope (IRIS) Data Center (NSF funded) are going to stay accessible to international scientists in the not too distant future?

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.

Amid ongoing Santorini unrest, re-plugging our recent pre-print: "Leaky faults modulated magma ascent and seismicity during the 2022 São Jorge (Azores) volcanic unrest" eartharxiv.org/repository/v... (featuring @pablojglez.bsky.social @alomaxnet.bsky.social amongst others). Feedback & ideas welcome

Many of us who knew Jaime through Seismica are still struggling to process his sudden passing a week ago. His family and friends are no doubt feeling this infinitely more. He brought a smile and enthusiasm to our weekly meetings that we will all miss terribly.

Absolutely devastated to hear this news. Jaime was an excellent colleague at Seismica and will be missed by us all. Condolences to his family, friends, and colleagues.

Back from parental leave, deleted my Twitter account, and ready to engage with BlueSky! Some personal news: I’m pleased to say that I’m starting a new job as NERC Independent Research Fellow and Lecturer in Environmental Seismology at University College London (UCL). Finally, a permanent job!

This is amazing! The Greenland USO (Unidentified Seismic Object) now immortalized in a cartoon 😁 Seism-o-solver to the rescue! Source (www.theguardian.com/commentisfre...)

The modellers among us worked hard to relate the period of the seismic oscillations to the period of a possible seiche (sloshing wave) in the fjord. Could it be modelled? (Yes!) Could it be sustained? (Yes!) @seismo-steve.bsky.social made this awesome video showing our colleagues' efforts!