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Stephen Hicks

@seismo-steve

Seismologist. NERC Independent Research Fellow and Lecturer at University College London (UCL). https://profiles.ucl.ac.uk/89579-stephen-hicks

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06.02.2024
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Latest posts by Stephen Hicks @seismo-steve

Joe of all trades

02.02.2026 21:20 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

Love this. Thanks so much for all your work, Jannes.

30.01.2026 22:00 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
Sparrow - geospatial data visualization β€” Pyrocko v2025.12.04 Manual

Sparrow by the Pyrocko team is excellent. pyrocko.org/docs/current...
You just need to convert your catalogue into the native Pyrocko format, but I have some scripts to help if you like?

10.12.2025 20:13 πŸ‘ 0 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

Kahramanmaraş initiated off the main EAF, too of course.

10.12.2025 16:39 πŸ‘ 1 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

Hey Andrew, nice work. Is the mainshock lying a little out-of-plane just because it’s not been relative-relocated with its aftershocks, because it has much lower frequency waveforms?

10.12.2025 07:51 πŸ‘ 1 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

Y-shaped splay-type structure at the northern end?

09.12.2025 15:36 πŸ‘ 1 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

Are you soliciting emails?

02.12.2025 16:17 πŸ‘ 3 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

Oh, it’s *that* kind of club …

30.11.2025 19:49 πŸ‘ 6 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

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

29.11.2025 20:36 πŸ‘ 23 πŸ” 9 πŸ’¬ 1 πŸ“Œ 1
Preview
Scientists reveal what triggered Santorini 'earthquake swarm' Thousands of earthquakes were caused by magma

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...

27.11.2025 09:31 πŸ‘ 29 πŸ” 11 πŸ’¬ 0 πŸ“Œ 0

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/...

22.11.2025 21:21 πŸ‘ 22 πŸ” 8 πŸ’¬ 0 πŸ“Œ 0
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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...

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/...

21.11.2025 07:32 πŸ‘ 39 πŸ” 16 πŸ’¬ 1 πŸ“Œ 5

No, 337 degrees was the temperature at the time, of course πŸ€ͺ

20.11.2025 08:19 πŸ‘ 2 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

Love it when a plan comes together, and quickly.

24.09.2025 07:36 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
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In case you hadn't seen yet, this event has sent seismic signals all around the word, with both body and surface waves. Below are Z-components of GSN stations, filtered 25-100 s.
Goran Ekstrom's surface wave detector gives this a surface magnitude = 5.4(!).

14.08.2025 14:15 πŸ‘ 3 πŸ” 1 πŸ’¬ 0 πŸ“Œ 0
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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.

14.08.2025 13:48 πŸ‘ 2 πŸ” 2 πŸ’¬ 0 πŸ“Œ 0
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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 90Β°, and surface waves beyond. Record section of Z-component seismic recordings from GSN stations filtered between 25 & 100 s πŸ‘‡

14.08.2025 10:58 πŸ‘ 10 πŸ” 1 πŸ’¬ 1 πŸ“Œ 0
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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.

14.08.2025 07:29 πŸ‘ 18 πŸ” 6 πŸ’¬ 1 πŸ“Œ 0
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Seminar 1 | Seafloor Explorer Seminar 1

The first Seafloor Explorer seminar on June 17th, 15.00 BST, will cover β€œRecent 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...

03.06.2025 14:59 πŸ‘ 3 πŸ” 2 πŸ’¬ 0 πŸ“Œ 1
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Seafloor Explorer | Online Seminar Series Seminar series focused on ocean tectonics - geophysics, geochemistry, geology - and associated bio-geological processes.

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

05.06.2025 14:12 πŸ‘ 5 πŸ” 1 πŸ’¬ 0 πŸ“Œ 0
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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...

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...

04.06.2025 15:46 πŸ‘ 11 πŸ” 2 πŸ’¬ 0 πŸ“Œ 0

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

12.05.2025 17:41 πŸ‘ 5 πŸ” 3 πŸ’¬ 1 πŸ“Œ 0

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

βš’οΈ πŸ§ͺ

12.05.2025 12:36 πŸ‘ 96 πŸ” 21 πŸ’¬ 5 πŸ“Œ 2
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Anchor Bolts xkcd.com/3078

19.04.2025 05:03 πŸ‘ 9443 πŸ” 729 πŸ’¬ 313 πŸ“Œ 94
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This morning's M6 Istanbul earthquake was preceded by a M3.9 foreshock ~35 minutes before
deprem.afad.gov.tr/last-earthqu...

23.04.2025 10:52 πŸ‘ 9 πŸ” 2 πŸ’¬ 0 πŸ“Œ 0
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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

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

23.04.2025 10:30 πŸ‘ 4 πŸ” 1 πŸ’¬ 0 πŸ“Œ 0

Who says reviewers can't find the time these days? πŸ˜€
#AcademicHeresy

11.04.2025 07:59 πŸ‘ 5 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

P.s., my angle on this is from ocean bottom seismology where we don’t have constant GPS synchronisation so sometimes have realllllly bad clock drifts 😬

03.04.2025 21:22 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

You would think so, but the forum post above implies they might be independent - the BB and SM might be on different dataloggers, for example. In any case, calibrating with a teleseismic P arrival could be a decent fallback option.

03.04.2025 21:19 πŸ‘ 0 πŸ” 0 πŸ’¬ 2 πŸ“Œ 0

So it seems like the BB sensor doesn’t have timing issues? Can the onset of the SM signal be aligned with it?

03.04.2025 21:15 πŸ‘ 1 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0