Bernd Andeweg's Avatar

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

358 Followers  |  392 Following  |  770 Posts  |  Joined: 21.11.2023  |  1.9573

Latest posts by berndandeweg.bsky.social on Bluesky

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Zaterdag een #HOVO Kindercollege voor 100+ kinderen en hun (groot)ouders @vuamsterdam.bsky.social met als titel 'Wat zegt een steen?' Niks toch? Leren luisteren = leren kijken. Was het een rivier, een diepzee, een strand uit de dino-tijd of het binnenste van een #vulkaan? #zinin

30.10.2025 18:41 โ€” ๐Ÿ‘ 1    ๐Ÿ” 0    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0

Goede keuze

29.10.2025 20:52 โ€” ๐Ÿ‘ 1    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0

Post a perfect album from the 90's that isn't Nirvana, Pearl Jam, Soundgarden, or Alice in Chains.

29.10.2025 20:49 โ€” ๐Ÿ‘ 4    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 1

Good pick...

29.10.2025 20:46 โ€” ๐Ÿ‘ 1    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0

Die van mij ging ooit verwachtingsvol mee, hij mocht het hokje rood kleuren! Hij keek toch wat bezorgd naar dat kleine rode potlood en het hele stemhokje...

29.10.2025 09:37 โ€” ๐Ÿ‘ 1    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0
Hurricane Strength Measured using Seismographs (Educational)
YouTube video by IRIS Earthquake Science Hurricane Strength Measured using Seismographs (Educational)

To learn more, watch this short video we made a few years back. youtu.be/QMA3Ze2vqN8

28.10.2025 13:32 โ€” ๐Ÿ‘ 18    ๐Ÿ” 7    ๐Ÿ’ฌ 2    ๐Ÿ“Œ 0

Even wat humor, na een politiek debat.

28.10.2025 21:19 โ€” ๐Ÿ‘ 8    ๐Ÿ” 2    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0
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As Hurricane Melissa makes landfall in Jamaica, we can see its approach over the past few days on seismometers. Strong winds generated by hurricanes create ocean waves and pressure fluctuations that cause stronger up and down movements in the water column, which seismometers record.

28.10.2025 12:02 โ€” ๐Ÿ‘ 24    ๐Ÿ” 15    ๐Ÿ’ฌ 2    ๐Ÿ“Œ 3
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UTTERLY SURREAL LOW ANGLE GLACIER SLIDE!! ๐Ÿ˜ฎ๐Ÿ˜ฑ

On Saturday at 11:00 am, a 2 km-long, 25 m-high, and 150-200 m in width section detached off the Ismoil Somoni Glacier (Tajikistan) and slid down the gorge! ๐ŸงŠ๐ŸŒŠ

asiaplustj.info/en/node/354309
๐Ÿ“ฝ๏ธ via @volcaholic1

28.10.2025 16:10 โ€” ๐Ÿ‘ 257    ๐Ÿ” 131    ๐Ÿ’ฌ 13    ๐Ÿ“Œ 26
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Orkaan #Melissa is nรณg sterker geworden (295 km/uur) en bereikt nu kust van Jamaica.
Witte kleuren is meer dan 200 km/uur wind.๐Ÿ˜ฑ
Dat waait wel over, maar de overlast van water, uitvallen van elektra & schoon water, aardverschuivingen, etc. gaat nog weken/maanden gevolgen hebben.

28.10.2025 15:38 โ€” ๐Ÿ‘ 27    ๐Ÿ” 4    ๐Ÿ’ฌ 7    ๐Ÿ“Œ 0
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Well, here we go. #Melissa is making landfall in Jamaica with sustained winds of 185 mph, gusts >200 mph, and a pressure of 892 mb (ties the 1935 Labor day hurricane for lowest pressure in a landfalling Atlantic hurricane in history). Jamaica is about to go through what almost nobody on Earth has.

28.10.2025 15:54 โ€” ๐Ÿ‘ 191    ๐Ÿ” 79    ๐Ÿ’ฌ 10    ๐Ÿ“Œ 11

The Nazca Plate!

28.10.2025 16:32 โ€” ๐Ÿ‘ 1    ๐Ÿ” 0    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0
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It looks like Melissa has made landfall within the past half hour. My goodness. I'm holding my breath and sending tons of thoughts to the folks in Jamaica.

28.10.2025 16:26 โ€” ๐Ÿ‘ 13    ๐Ÿ” 2    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0
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A fossilized Bryozoan sea mat from over 300 million years ago and a couple of ones I found growing on some seaweed a few weeks back. Relatively unchanged after all that time!!
County Donegal, Ireland.

27.10.2025 11:29 โ€” ๐Ÿ‘ 106    ๐Ÿ” 13    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0

Yes! Exactly the same age as the Brejeira Formation of the Baixo Alentejo Group where my pictures are from...!! Once closer to each other...

27.10.2025 05:51 โ€” ๐Ÿ‘ 0    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0

And is this Culm basin?

26.10.2025 20:44 โ€” ๐Ÿ‘ 0    ๐Ÿ” 0    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0

Paleocurrents to the left in the last picture?!

26.10.2025 20:43 โ€” ๐Ÿ‘ 0    ๐Ÿ” 0    ๐Ÿ’ฌ 2    ๐Ÿ“Œ 0

Sort of mirroring. Same stuff.. great sedimentology combined with structural geology. And yes.. the first days were summer still.

26.10.2025 20:42 โ€” ๐Ÿ‘ 1    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0
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Greetings from nearly the same rocks in SW Portugal...

26.10.2025 19:29 โ€” ๐Ÿ‘ 8    ๐Ÿ” 0    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0
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This was hilarious to see: a young gekko trying to catch a spider. Or, at least the shadow of a spider... ๐Ÿ˜‚๐Ÿ˜

25.10.2025 17:01 โ€” ๐Ÿ‘ 1    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0
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Ik lees dit. Herken je dat?

24.10.2025 20:27 โ€” ๐Ÿ‘ 2    ๐Ÿ” 0    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0

Zijn het nog gewoon de kalkschelpen? Dat de kalk niet is opgezet? Of kun je ze op die manier onderscheiden (glimmender)?

24.10.2025 18:26 โ€” ๐Ÿ‘ 1    ๐Ÿ” 0    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0
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No, this is not Zumaya.. but #Flysches: yes. #Carboniferous of age in the South Portuguese Zone. Trying to figure out paleocurrents during deposition and joint orientation and density depending on thickness of competent and incompetent layers. #Sedimentology meets #Structural #Geology
#Odeceixe

23.10.2025 21:18 โ€” ๐Ÿ‘ 6    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0

Pero Huy esta en Belgica... ๐Ÿ˜Š

22.10.2025 20:48 โ€” ๐Ÿ‘ 0    ๐Ÿ” 0    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0
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CO2 levels in Earth's atmosphere jumped by a record amount in 2024 The global average concentration of CO2 surged by 3.5 parts per million to reach 423.9 ppm last year, fuelling worries that the planetโ€™s ability to soak up excess carbon is weakening

โ€œThis is the largest increase since modern measurements started in 1957 and is well in excess of the 2022โ€“2023 increase of 2.3 ppm.โ€

Global carbon sinks buckling as pollution overwhelms Earthโ€™s capacity to absorb our impacts. โ˜ ๏ธ

www.newscientist.com/article/2500...

20.10.2025 09:29 โ€” ๐Ÿ‘ 116    ๐Ÿ” 72    ๐Ÿ’ฌ 4    ๐Ÿ“Œ 10
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Verbeterde versie:

20.10.2025 18:02 โ€” ๐Ÿ‘ 0    ๐Ÿ” 1    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0
**            naamgeving
           vleesvervangers

        en biefstuk noemen
            we voortaan
              
                   >dode koe<          **

** naamgeving vleesvervangers en biefstuk noemen we voortaan >dode koe< **

** naamgeving
vleesvervangers

en biefstuk noemen
we voortaan

>dode koe< **

20.10.2025 05:13 โ€” ๐Ÿ‘ 216    ๐Ÿ” 64    ๐Ÿ’ฌ 9    ๐Ÿ“Œ 3
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Back along the Portuguese SW coast for some geology! MSc students to do research on paleocurrents in the flysches and relations between bed thickness and veins.

18.10.2025 22:31 โ€” ๐Ÿ‘ 7    ๐Ÿ” 0    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0

Ik dacht even dat je ze al op volgorde had gezet...

12.10.2025 21:17 โ€” ๐Ÿ‘ 2    ๐Ÿ” 0    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0
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Small part of Antarctica.

Single-band image taken by Sentinel-2 back in 2023.

Lat, lng: -75.2, -106.9

01.01.2025 12:32 โ€” ๐Ÿ‘ 88    ๐Ÿ” 16    ๐Ÿ’ฌ 5    ๐Ÿ“Œ 1

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