Lightnews — Scholar-powered news

João C. Duarte @joaocduarte.bsky.social · 12d

An accompanying short paper, written in a simple form. You can download it here: ulisboa-my.sharepoint.com/:b:/g/person...

1 5

Reposted by João C. Duarte

Instituto Dom Luiz of Earth System Science @idlearth.bsky.social · Sep 15

Hello from Lisbon!

We’re IDL (Intituto Dom Luiz) — Portugal’s institute for Earth systems research based at the University of Lisbon.

We study 🌍 Earth, 🌱 climate, 🌊 oceans, ☁️ atmosphere & 🚀 space to shape a sustainable future.

Follow for science, insight & discovery.
#EarthScience #Portugal

1 6

Reposted by João C. Duarte

Instituto Dom Luiz of Earth System Science @idlearth.bsky.social · 17d

New in @nature.com: research led by @idlearth.bsky.social's @joaocduarte.bsky.social shows the ocean floor off Portugal is peeling away into the mantle.

This rare process may explain the 1755 Lisbon M8.7 quake and could mark the initiation of a new subduction zone.

www.nature.com/articles/s41...

Seismic evidence for oceanic plate delamination offshore Southwest Iberia - Nature Geoscience

The lithospheric mantle may be delaminating from the crust in an oceanic plate segment offshore Southwest Iberia, which could be the ultimate cause of the 1755 Great Lisbon Earthquake, according to seismic imaging and numerical simulations.

www.nature.com

1 2

João C. Duarte @joaocduarte.bsky.social · 18d

The amazing Marine and Costal Geology group! Class 25/26.

@cienciasulisboa.bsky.social

#geologia #fcul

6

João C. Duarte @joaocduarte.bsky.social · 19d

Et Voilà! My second home!

2 6

João C. Duarte @joaocduarte.bsky.social · 19d

1

João C. Duarte @joaocduarte.bsky.social · 19d

On the way to Telheiro Unconformity..

@cienciasulisboa.bsky.social

#geologia #fcul

1 1 4

João C. Duarte @joaocduarte.bsky.social · 19d

Getting ready!

#geologia #fcul

1

João C. Duarte @joaocduarte.bsky.social · 19d

Good morning!

@cienciasulisboa.bsky.social

#geologia #fcul

4

João C. Duarte @joaocduarte.bsky.social · 20d

The best classroom!

@cienciasulisboa.bsky.social

#geologia #fcul

4

João C. Duarte @joaocduarte.bsky.social · 20d

Start of the Marine and Costal Geology field trip 25/26 from the Earth Sciences and Energy Department @cienciasulisboa.bsky.social

#geology #fcul

2

Reposted by João C. Duarte

Dr. Judith Hubbard @judithgeology.bsky.social · 23d

⚒️ 🧪 Were you one of the tens of thousands in the Bay Area woken up by the M4.3 earthquake last night? The earthquake occurred on the Hayward Fault, which runs along the east side of the valley.

Learn more about what we know, and don't know, about the Hayward Fault and its seismic hazard:

M4.3 earthquake rattles Berkeley, CA

A reminder of the hazard of the Hayward Fault

earthquakeinsights.substack.com

2 17 51

João C. Duarte @joaocduarte.bsky.social · 26d

New paper in Tectonics! This was the result of a visit by Professor Wengang He from the Zunyi Normal University to the @cienciasulisboa.bsky.social. We did some cool sandbox experiments with interesting results!

doi.org/10.1029/2024...

João C. Duarte @joaocduarte.bsky.social · 26d

www.nasa.gov/universe/exo...

NASA’s Tally of Planets Outside Our Solar System Reaches 6,000 - NASA

The milestone highlights the accelerating rate of discoveries, just over three decades since the first exoplanets were found.

www.nasa.gov

1 1

Reposted by João C. Duarte

EGU TS @ts.egu.eu · 27d

The region around the Pic Saint-Loup is a popular destination for many EU universities to teach mapping field courses – and there is a reason for it, even besides the great landscape, good food and nice weather.

Join Lauretta Kaerger on a tour to find out!
Full post 👉: tinyurl.com/PicSLoup

Throwback Summer – retracing student steps at the Pic Saint-Loup, France

The region around the Pic Saint-Loup is a popular destination for many European universities to teach mapping field courses – and there is a reason for it, even besides the great landscape, good food ...

tinyurl.com

2 4

João C. Duarte @joaocduarte.bsky.social · Sep 13

The Tectonics and Structural Geology Division has a spectacular blog team! We, as a community, are very proud!

@ts.egu.eu
@egu.eu

EGU TS @ts.egu.eu · Sep 11

✨ The TS Blog is back! ✨

A new editorial team is ready to bring you fresh posts every Thursday at 10:00 CET.

Curious to see who’s behind the blog this year?

👉 Meet the team: blogs.egu.eu/divisions/ts...

#EGUTS #tectonics #structuralgeology #ECS

Introducing the blog team 2025-2026

For many of you September means back to school, for us September means the return of the blog. Behind the scene this summer, the bright new editorial team prepared fresh blog posts to share with the c...

blogs.egu.eu

4

João C. Duarte @joaocduarte.bsky.social · Sep 12

iugs-geoheritage.org/geoheritage_...

Carboniferous – Triassic Unconformity in Telheiro - IUGS

iugs-geoheritage.org

3

João C. Duarte @joaocduarte.bsky.social · Sep 12

1 6

João C. Duarte @joaocduarte.bsky.social · Sep 12

#GEOMOD25 field trip. We passed by the Telheiro unconformity.

#idl @cienciasulisboa.bsky.social

1 1 8

João C. Duarte @joaocduarte.bsky.social · Sep 12

Guess where I am?!

@cienciasulisboa.bsky.social

#geomod25

1 4

João C. Duarte @joaocduarte.bsky.social · Sep 8

And we start with talk by Wouter Schellart about subduction zones topography using analogue and numerical models.

#GEOMOD25

1

João C. Duarte @joaocduarte.bsky.social · Sep 8

After a great ice breaker yesterday, GEOMOD25 will start today! Check the full program here: geomod2025.com?page_id=24

IDL - Instituto Dom Luiz, @cienciasulisboa.bsky.social

#fcul

1

João C. Duarte @joaocduarte.bsky.social · Sep 5

This article is also very well written. Clear and extremely accurate.

@cienciasulisboa.bsky.social

thedebrief.org/scientists-h...

Scientists Have Traced Mysterious Earthquakes Rocking Southern Europe to an “Anomaly” Deep Beneath the Seafloor

New evidence is helping scientists track the origins of mysterious earthquakes that have been rattling Southwest Iberia in recent months.

thedebrief.org

2 6

João C. Duarte @joaocduarte.bsky.social · Sep 1

Another nice story that deserves to be shared! :)

@cienciasulisboa.bsky.social

phys.org/news/2025-09...

Rare oceanic plate delamination may explain Portugal's mysterious earthquakes

One of the worst earthquakes in European history ripped through Portugal in 1755, causing a tsunami, fires and shaking that killed tens of thousands of people and caused widespread destruction. Anothe...

phys.org

1 1 6

João C. Duarte @joaocduarte.bsky.social · Sep 1

Fontes:

earthquake.usgs.gov/earthquakes/...

m.emsc.eu#earthquake

#sismo #afeganistão #tectónica #geologia