Bernd Andeweg
@berndandeweg.bsky.social
Earth sciences - geology - tectonics - earthquakes - fieldwork - teaching - outreach - Vrije Universiteit Amsterdam - aardbeving - vulkanen - Aardwetenschappen
Also active as
https://bsky.app/profile/berndandeweg.mastodon.nl.ap.brid.gy
Also active as
https://bsky.app/profile/berndandeweg.mastodon.nl.ap.brid.gy
Reposted by Bernd Andeweg
Weathering has revealed traces of Permian-Triassic sand dunes formed more than 200 million years ago
January 5, 2026 at 7:18 AM
Weathering has revealed traces of Permian-Triassic sand dunes formed more than 200 million years ago
Reposted by Bernd Andeweg
The majority of Americans can’t locate Venezuela on this map
January 4, 2026 at 12:12 PM
The majority of Americans can’t locate Venezuela on this map
Reposted by Bernd Andeweg
And here's my favourite case - growing of Nishinoshima in Japan 📏😊
Images taken by Landsat-8.
Images taken by Landsat-8.
January 3, 2026 at 1:40 PM
And here's my favourite case - growing of Nishinoshima in Japan 📏😊
Images taken by Landsat-8.
Images taken by Landsat-8.
Voor een beetje achtergrond over de bruikbaarheid van al die Venozelaanse olie.
🧵I will say it again:
Much of Venezuela’s oil is very heavy crude that's high in sulfur and metals and has a low API gravity, which makes it difficult and expensive to refine.
You need a lot of expensive catalysts to get rid of the sulfur.
Much of Venezuela’s oil is very heavy crude that's high in sulfur and metals and has a low API gravity, which makes it difficult and expensive to refine.
You need a lot of expensive catalysts to get rid of the sulfur.
January 4, 2026 at 11:11 AM
Voor een beetje achtergrond over de bruikbaarheid van al die Venozelaanse olie.
Reposted by Bernd Andeweg
Reposted by Bernd Andeweg
A picture is worth 1000 words...
This appeared on the BBC News today, showing the increase in solar electric generation in the UK.
Not sure who produced it, but genuinely think this is a genius piece of scientific communication - the construct and choice of colour scale is near-perfect.
Chapeau!
This appeared on the BBC News today, showing the increase in solar electric generation in the UK.
Not sure who produced it, but genuinely think this is a genius piece of scientific communication - the construct and choice of colour scale is near-perfect.
Chapeau!
January 2, 2026 at 4:53 PM
A picture is worth 1000 words...
This appeared on the BBC News today, showing the increase in solar electric generation in the UK.
Not sure who produced it, but genuinely think this is a genius piece of scientific communication - the construct and choice of colour scale is near-perfect.
Chapeau!
This appeared on the BBC News today, showing the increase in solar electric generation in the UK.
Not sure who produced it, but genuinely think this is a genius piece of scientific communication - the construct and choice of colour scale is near-perfect.
Chapeau!
Reposted by Bernd Andeweg
Geologizing biology. Faults over folds.
December 31, 2025 at 3:58 PM
Geologizing biology. Faults over folds.
Reposted by Bernd Andeweg
Open up this picture fully.
Then look at the surface of Mars.
Then look up to the top right.
Spot Mars' moon Phobos high in the sky.
Then notice the bright spot beside Phobos.
That's Earth.
Then look at the surface of Mars.
Then look up to the top right.
Spot Mars' moon Phobos high in the sky.
Then notice the bright spot beside Phobos.
That's Earth.
December 30, 2025 at 9:30 PM
Open up this picture fully.
Then look at the surface of Mars.
Then look up to the top right.
Spot Mars' moon Phobos high in the sky.
Then notice the bright spot beside Phobos.
That's Earth.
Then look at the surface of Mars.
Then look up to the top right.
Spot Mars' moon Phobos high in the sky.
Then notice the bright spot beside Phobos.
That's Earth.
Reposted by Bernd Andeweg
OMG seriously...
December 29, 2025 at 10:10 AM
OMG seriously...
Reposted by Bernd Andeweg
Christmas attack on civilians in Kyiv. Sure, the Russians want peace
‼️ Movement of missiles and drones during the massive Russian attack on Ukraine
December 27, 2025 at 9:43 AM
Christmas attack on civilians in Kyiv. Sure, the Russians want peace
Reposted by Bernd Andeweg
Folding in Proterozoic South Delhi Fold Belt, Kumbhalgarh Fort, Rajasthan.
Check out the polyphase folding (red arrow).
Pic- Vivek Singh Grewal.
#FridayFold
Check out the polyphase folding (red arrow).
Pic- Vivek Singh Grewal.
#FridayFold
December 26, 2025 at 11:33 AM
Folding in Proterozoic South Delhi Fold Belt, Kumbhalgarh Fort, Rajasthan.
Check out the polyphase folding (red arrow).
Pic- Vivek Singh Grewal.
#FridayFold
Check out the polyphase folding (red arrow).
Pic- Vivek Singh Grewal.
#FridayFold
Voor de #UniversiteitvanNL 5 vragen beantwoord over #vulkanen. @vuamsterdam.bsky.social #aardwetenschappen ⚒️
youtu.be/1gR2zTZZ6CY?...
youtu.be/1gR2zTZZ6CY?...
Nederland heeft een vulkaan, dit is waar!
YouTube video by Universiteit van Nederland
youtu.be
December 21, 2025 at 10:55 AM
Voor de #UniversiteitvanNL 5 vragen beantwoord over #vulkanen. @vuamsterdam.bsky.social #aardwetenschappen ⚒️
youtu.be/1gR2zTZZ6CY?...
youtu.be/1gR2zTZZ6CY?...
Reposted by Bernd Andeweg
Dank je Diederik. Via @scientias-nl.bsky.social
December 19, 2025 at 3:00 PM
Dank je Diederik. Via @scientias-nl.bsky.social
Reposted by Bernd Andeweg
Mosasaurs, the giant marine reptiles that roamed the Earth more than 66 million years ago, didn’t just live in the sea. Our new research shows that they could thrive in freshwater too! Let’s dive into what we’ve discovered.
#Paleontology #Mosasaurs
#Paleontology #Mosasaurs
December 12, 2025 at 8:17 AM
Mosasaurs, the giant marine reptiles that roamed the Earth more than 66 million years ago, didn’t just live in the sea. Our new research shows that they could thrive in freshwater too! Let’s dive into what we’ve discovered.
#Paleontology #Mosasaurs
#Paleontology #Mosasaurs
Reposted by Bernd Andeweg
Vanavond in het 8 uur journaal over ons nieuwe onderzoek waarin wij ontdekten dat mosasauriërs ook in rivieren voorkwamen! #aardwetenschappen #paleontologie #mosasaurus @vuamsterdam.bsky.social @uuvertpalaeo.bsky.social @ndgspaleo.bsky.social @perahlberg.bsky.social @boydpaleo.bsky.social
December 15, 2025 at 8:49 PM
Vanavond in het 8 uur journaal over ons nieuwe onderzoek waarin wij ontdekten dat mosasauriërs ook in rivieren voorkwamen! #aardwetenschappen #paleontologie #mosasaurus @vuamsterdam.bsky.social @uuvertpalaeo.bsky.social @ndgspaleo.bsky.social @perahlberg.bsky.social @boydpaleo.bsky.social
Reposted by Bernd Andeweg
Ja maar migratie.
December 15, 2025 at 4:14 PM
Ja maar migratie.
Reposted by Bernd Andeweg
Nerineids and bivalves on the floor of Bilkent Concert Hall, Ankara🥳
#UrbanGeology
#UrbanGeology
December 13, 2025 at 6:05 PM
Nerineids and bivalves on the floor of Bilkent Concert Hall, Ankara🥳
#UrbanGeology
#UrbanGeology
Reposted by Bernd Andeweg
worth repeating
December 13, 2025 at 8:06 PM
worth repeating
Reposted by Bernd Andeweg
Reposted by Bernd Andeweg
Lees dit artikel op de Volkskrant www.volkskrant.nl/wetenschap/m...
Milieuagentschap in VS schrapt de mens als oorzaak van opwarming klimaat: ‘Dit is diep alarmerend’
Stap voor stap herschrijft de regering-Trump de klimaatwetenschap. Op een informatiepagina over de oorzaken van klimaatverandering, van het milieuagentschap EPA, blijkt de hoofdoorzaak van klimaatopwa...
www.volkskrant.nl
December 10, 2025 at 2:04 PM
Lees dit artikel op de Volkskrant www.volkskrant.nl/wetenschap/m...
Reposted by Bernd Andeweg
*This* is what the people of Pompeii, and Herculaneum, and many other hapless souls saw—this is what a pyroclastic density current looks coming RIGHT at you.
Filmed from a CCTV camera during the Mount Semeru eruption on Java, Indonesia on 4 December 2022.
Video credit: PT United Tractors Tbk
Filmed from a CCTV camera during the Mount Semeru eruption on Java, Indonesia on 4 December 2022.
Video credit: PT United Tractors Tbk
December 7, 2025 at 3:24 AM
*This* is what the people of Pompeii, and Herculaneum, and many other hapless souls saw—this is what a pyroclastic density current looks coming RIGHT at you.
Filmed from a CCTV camera during the Mount Semeru eruption on Java, Indonesia on 4 December 2022.
Video credit: PT United Tractors Tbk
Filmed from a CCTV camera during the Mount Semeru eruption on Java, Indonesia on 4 December 2022.
Video credit: PT United Tractors Tbk
Reposted by Bernd Andeweg
It looks like northern Japan coastal ports have seen tsunami waves arriving already, but so far just 30-70 cm high. Later-arriving peaks could be higher, but that is good news that the ultimate size will be moderate. I hope so! Damage reports sketchy so far, but also some reason for optimism.
December 8, 2025 at 4:25 PM
It looks like northern Japan coastal ports have seen tsunami waves arriving already, but so far just 30-70 cm high. Later-arriving peaks could be higher, but that is good news that the ultimate size will be moderate. I hope so! Damage reports sketchy so far, but also some reason for optimism.
Reposted by Bernd Andeweg
#EarthquakeReport for M 7.6 #Earthquake offshore of #Japan
Megathrust subduction zone earthquake
@USGS_Quakes models suggest earthquake triggered landslides and induced liquefaction
Tectonic setting in '16 report earthjay.com?p=4540
earthquake.usgs.gov/earthquakes/...
Megathrust subduction zone earthquake
@USGS_Quakes models suggest earthquake triggered landslides and induced liquefaction
Tectonic setting in '16 report earthjay.com?p=4540
earthquake.usgs.gov/earthquakes/...
December 8, 2025 at 2:59 PM
#EarthquakeReport for M 7.6 #Earthquake offshore of #Japan
Megathrust subduction zone earthquake
@USGS_Quakes models suggest earthquake triggered landslides and induced liquefaction
Tectonic setting in '16 report earthjay.com?p=4540
earthquake.usgs.gov/earthquakes/...
Megathrust subduction zone earthquake
@USGS_Quakes models suggest earthquake triggered landslides and induced liquefaction
Tectonic setting in '16 report earthjay.com?p=4540
earthquake.usgs.gov/earthquakes/...
Reposted by Bernd Andeweg
Y'all the latest episode of the #Kilauea #eruption just went CRAZY. It looks like pressure built up enough to explode out the ground around the two existing vents (first few seconds), leading to a massive surge in lava fountaining.🌋🤯
USGS Live stream: www.youtube.com/watch?v=fiyt...
USGS Live stream: www.youtube.com/watch?v=fiyt...
December 6, 2025 at 8:01 PM
Y'all the latest episode of the #Kilauea #eruption just went CRAZY. It looks like pressure built up enough to explode out the ground around the two existing vents (first few seconds), leading to a massive surge in lava fountaining.🌋🤯
USGS Live stream: www.youtube.com/watch?v=fiyt...
USGS Live stream: www.youtube.com/watch?v=fiyt...