𝙈𝙞𝙣 𝙎𝙚𝙤𝙣𝙜 𝙎𝙚𝙤
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seismoseo.bsky.social
𝙈𝙞𝙣 𝙎𝙚𝙤𝙣𝙜 𝙎𝙚𝙤
@seismoseo.bsky.social
PhD student doing research on observational seismology at Seoul National University. Citizen of Republic of Korea. I am interested in physics and statistics of earthquakes, especially the small ones in intraplate environment.
Reposted by 𝙈𝙞𝙣 𝙎𝙚𝙤𝙣𝙜 𝙎𝙚𝙤
A M5.5 earthquake killed at least ten people in Bangladesh today. What made this moderate event so deadly? And what do we know about seismic hazards in the country?

⚒️ 🧪

earthquakeinsights.substack.com/p/bangladesh...
Bangladesh shaken by deadly M5.5 earthquake
A moderate magnitude earthquake near a dense, vulnerable megacity
earthquakeinsights.substack.com
November 22, 2025 at 3:06 AM
Reposted by 𝙈𝙞𝙣 𝙎𝙚𝙤𝙣𝙜 𝙎𝙚𝙤
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...
www.science.org
November 21, 2025 at 7:32 AM
Reposted by 𝙈𝙞𝙣 𝙎𝙚𝙤𝙣𝙜 𝙎𝙚𝙤
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A M6.8 earthquake struck offshore Japan today - another large earthquake from the subduction zone that produced two recent great earthquakes. The earthquake was preceded by a "cascade up": foreshocks progressively increasing in maximum magnitude.

What do we know? What might happen next?
M6.8 earthquake offshore Japan preceded by upward cascade of foreshocks
What do we know about seismic hazard in the Japan-Kuril subduction zone?
earthquakeinsights.substack.com
November 9, 2025 at 6:41 PM
Reposted by 𝙈𝙞𝙣 𝙎𝙚𝙤𝙣𝙜 𝙎𝙚𝙤
⚠️ Faults don’t slip evenly!!
Varying slip rates along faults drive complex earthquake cycle patterns, yet they are overlooked in seismic hazard assessments.
Read more: seismica.library.mcgill.ca/article/view...
October 14, 2025 at 11:35 PM
Reposted by 𝙈𝙞𝙣 𝙎𝙚𝙤𝙣𝙜 𝙎𝙚𝙤
It was a pleasure to contribute to this article, which talks about how AI contributes to seismology - indeed, we have seen tremendous progress in the use of machine learning to detect small events.

1/
“Like putting on glasses for the first time”—how AI improves earthquake detection
AI is “comically good” at detecting small earthquakes—here’s why that matters.
arstechnica.com
October 11, 2025 at 2:14 PM
Reposted by 𝙈𝙞𝙣 𝙎𝙚𝙤𝙣𝙜 𝙎𝙚𝙤
New paper alert. Volcanic crisis reveals coupled magma system at Santorini and Kolumbo. Great work led by Marius and Jens, thanks all for working on that together! It can be found in today’s issue of Nature.

www.nature.com/articles/s41...
September 24, 2025 at 4:58 PM
Reposted by 𝙈𝙞𝙣 𝙎𝙚𝙤𝙣𝙜 𝙎𝙚𝙤
SeisBench v.10 is out and it's time for some new models:
- SkyNet allows picking regional phases and can even distinguish Pn, Pg, Sn, Sg (beware of the Terminator though)
- SeisDAE brings easily retrainable seismic waveform denoising

Check out all changes here:
github.com/seisbench/se...
Release SeisBench v0.10 - SkyNet, SeisDAE and a more powerful model API · seisbench/seisbench
Major updates The SkyNet model is now available in SeisBench. SkyNet is specifically designed to pick phase arrivals at regional distances (up to 20 degree) and also comes with a set of weights to...
github.com
August 11, 2025 at 10:19 AM
Reposted by 𝙈𝙞𝙣 𝙎𝙚𝙤𝙣𝙜 𝙎𝙚𝙤
"... large language models will always produce hallucinations due to fundamental mathematical constraints that cannot be solved through better engineering ..."

🧪🤖 #AI
OpenAI admits AI hallucinations are mathematically inevitable, not just engineering flaws
In a landmark study, OpenAI researchers reveal that large language models will always produce plausible but false outputs, even with perfect data, due to fundamental statistical and computational limi...
www.computerworld.com
September 20, 2025 at 8:39 PM
Reposted by 𝙈𝙞𝙣 𝙎𝙚𝙤𝙣𝙜 𝙎𝙚𝙤
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A M7.4 earthquake struck Russia's Kamchatka peninsula today: the largest aftershock so far of the great M8.8 on July 29th.

What do we see in the seismic data so far? And what are the chances of a triggered earthquake next door?

earthquakeinsights.substack.com/p/m74-earthq...
M7.4 earthquake shakes Kamchatka: largest aftershock of the M8.8 earthquake
How does it fit into the seismic sequence?
earthquakeinsights.substack.com
September 14, 2025 at 1:17 AM
Reposted by 𝙈𝙞𝙣 𝙎𝙚𝙤𝙣𝙜 𝙎𝙚𝙤
M3.6 #earthquake detected 15 km NNE of Pine Valley, CA at 9/13/2025 7:02:41 PM PDT

This reflects data from the U.S. Geological Survey that is subject to change. Visit the USGS page linked below for the latest #quake information
M3.6 - 15 km NNE of Pine Valley, CA
A magnitude 3.6 earthquake located 15 km NNE of Pine Valley, CA was detected at 9/13/2025 7:02:41 PM PDT. This information is subject to change. Please visit the USGS event page for up-to-date details.
earthquake.usgs.gov
September 14, 2025 at 2:06 AM
Reposted by 𝙈𝙞𝙣 𝙎𝙚𝙤𝙣𝙜 𝙎𝙚𝙤
⚒️ 🧪

If you've seen breathless reporting about a seismic swarm near a "supervolcano" in northern Nevada, don't worry: that is just where Yellowstone was, 15 million years ago. There is no supervolcano there now.

But the swarm, and the geology here, is pretty neat! Read about it in our latest post:
Seismic swarm rattles northern Nevada
There is no supervolcano here, despite claims in disreputable tabloids
earthquakeinsights.substack.com
September 6, 2025 at 3:26 PM
Reposted by 𝙈𝙞𝙣 𝙎𝙚𝙤𝙣𝙜 𝙎𝙚𝙤
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
August 31, 2025 at 7:57 PM
Reposted by 𝙈𝙞𝙣 𝙎𝙚𝙤𝙣𝙜 𝙎𝙚𝙤
🔥OPEN ACCESS+PRESS RELEASE🔥
A new #TSR study suggests that the 28 March 2025 magnitude 7.8 Myanmar earthquake's southern section ruptured at supershear velocity, reaching speeds of 5 to 6 kilometers per second.

PR: www.seismosoc.org/news/first-a...

Paper: pubs.geoscienceworld.org/ssa/tsr/arti...
July 19, 2025 at 9:01 PM
Reposted by 𝙈𝙞𝙣 𝙎𝙚𝙤𝙣𝙜 𝙎𝙚𝙤
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A M7.3 earthquake struck offshore Alaska yesterday. This is the sixth earthquake above M7 in this small stretch of the subduction zone since 2020.

This was a weird strike-slip earthquake, reminiscent of a similar quake in 2020. Did these ruptures happen in the slab, the upper plate - or both?
Magnitude 7.3 earthquake in the Shumagin Gap, Alaska
Another exciting strike-slip earthquake in a classic subduction setting
earthquakeinsights.substack.com
July 17, 2025 at 11:39 PM
Reposted by 𝙈𝙞𝙣 𝙎𝙚𝙤𝙣𝙜 𝙎𝙚𝙤
Temblor's latest, by @beccapox.bsky.social, looks at how modeling of slow-slip earthquakes can also help scientists understand slow-moving landslides, a common hazard along the U.S. West Coast. ⚒️

temblor.net/earthquake-i...
Earthquake science illuminates landslide behavior - Temblor.net
How scientists model slow-slip earthquakes can also help them understand slow-moving landslides, a common hazard along the West Coast.   By Rebecca Owen, Science Writer (@beccapox)   Citation:Owen, R....
temblor.net
July 16, 2025 at 6:57 PM
Reposted by 𝙈𝙞𝙣 𝙎𝙚𝙤𝙣𝙜 𝙎𝙚𝙤
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A M6.7 earthquake struck below the Weber Deep yesterday (a part of the Banda Sea, in eastern Indonesia).

Actually, lots of earthquakes strike below the Weber Deep. What’s going on down there? We explore how curved subduction zones might cause strange stresses in sinking slabs.
M6.7 strike-slip earthquake strikes beneath the Weber Deep
Strange stresses in the downgoing slab, revealed by earthquake moment tensors
earthquakeinsights.substack.com
July 15, 2025 at 5:59 PM
Reposted by 𝙈𝙞𝙣 𝙎𝙚𝙤𝙣𝙜 𝙎𝙚𝙤
I generated a quick map with past seismicity and it appears that M5ish earthquakes have previously occurred near the North coast of Greenland. Today’s M5.8 event is the pink square. ⚒️🧪
July 15, 2025 at 6:38 PM
Reposted by 𝙈𝙞𝙣 𝙎𝙚𝙤𝙣𝙜 𝙎𝙚𝙤
Magnitude : 4.4
Region: *Myanmar*
Time: 2025-07-15 20:57:38 UTC
Epicenter : 96.12°E 22.03°N
Depth: 10 km
*First posted at: 21:09 UTC*

https://geofon.gfz-potsdam.de/eqexplorer/events/gfz2025ntwp/general

##GEOFON ##GFZ ##earthquake ##magnitude
July 16, 2025 at 6:26 AM
Reposted by 𝙈𝙞𝙣 𝙎𝙚𝙤𝙣𝙜 𝙎𝙚𝙤
Earthquake data analysts beware! Just like social media video filters, what you’re looking at may not be real. #nofilter
Also, I just discovered Bluesky now allows videos (like this one) that are longer than 60 seconds 🎉
New video length limit is 3 minutes.
June 21, 2025 at 12:02 AM
Reposted by 𝙈𝙞𝙣 𝙎𝙚𝙤𝙣𝙜 𝙎𝙚𝙤
SeisBench v0.9 is out now. Some highlights of the new version:

- The CWA dataset with broadband and strong motion data from Taiwan.
- The CEED dataset covering more than 4 million waveforms from California.
- A 20% speed-up when picking continuous datasets.

github.com/seisbench/se...
Release SeisBench v0.9 - Two new datasets, pick exporting, lots of small tweaks · seisbench/seisbench
Major updates Two new datasets: CWA for Taiwan, containing lots of larger events, and CEED for California, combining millions of manual phase picks with rich metadata from Northern and Southern Ca...
github.com
May 14, 2025 at 12:03 PM
Reposted by 𝙈𝙞𝙣 𝙎𝙚𝙤𝙣𝙜 𝙎𝙚𝙤
Gardonio et al. reveal a seismicity acceleration that began a year before the 2015 Mw 7.9 Gorkha earthquake in Nepal, with small quakes clustering near the rupture zone initiation.
Early warning signs?
[@lgltpe.bsky.social]
Read more: seismica.library.mcgill.ca/article/view...
May 13, 2025 at 11:52 PM
I first thought that this event was unusuall deep for an intraplate crustal event. However, it seems that the depth (25 km) is within the seismogenic volume inferred from the background seismicity, yet, still at the bottom of seismogenic depth.
⚒️ 🧪

More than 40,000 people reported feeling shaking when a M4.1 earthquake struck eastern Tennessee this morning.

Unusual? Maybe not: this is part of the Eastern Tennessee Seismic Zone. But the jury is still out on exactly why those earthquakes are occurring…
M4.1 earthquake rattles Tennessee
One of many earthquakes in the enigmatic Eastern Tennessee Seismic Zone
earthquakeinsights.substack.com
May 11, 2025 at 2:55 AM
Regional phase picker does seem very innovative!
May 1, 2025 at 7:55 AM
Reposted by 𝙈𝙞𝙣 𝙎𝙚𝙤𝙣𝙜 𝙎𝙚𝙤
Aguilar Suarez & Beroza present a deep learning phase picker to capture arrival times from earthquakes at regional distances, intended for sparse seismic networks or remote regions.

Read now: seismica.library.mcgill.ca/article/view...
April 30, 2025 at 9:24 PM
Reposted by 𝙈𝙞𝙣 𝙎𝙚𝙤𝙣𝙜 𝙎𝙚𝙤
Published!!!! The first article of my PhD and the first from the lab that I set up!! 🤩🤩
We study the dynamic effects of fault bends on earthquake ruptures by imaging shear ruptures in PMMA plates propagating through bends (double bends to be exact).
www.pnas.org/doi/10.1073/...
⚒️🧪
Lab earthquakes reveal a wide range of rupture behaviors controlled by fault bends | PNAS
Natural faults are typically nonplanar and exhibit multiple bends, which deviate from the general fault orientation at different angles. However, w...
www.pnas.org
April 25, 2025 at 6:42 PM