Robin Lacassin @RobinLacassin@qoto.org
- My IPGP page
- http://www.ipgp.fr/~lacassin
- Tectoldies blog
- https://tectoldies.mystrikingly.com/
Geology, tectonics, earthquakes, seismotectonics, hazard epistemology & sci com.
Senior researcher at Institut de Physique du Globe de Paris (IPGP - CNRS - Univ. Paris Cité). Tektonika DOAJ executive editor.
Joined Nov 2022
New paper published: A contribution to the quantification of crustal shortening and kinematics of deformation across the Western #Andes ( ∼ 20–22° S), Habel et al., Solid Earth, 2023
https://se.copernicus.org/articles/14/17/2023/ (open access)
Link to the whatercolour painting of the Midori fault scarp at Kyoto University rare materials digital archive:
https://rmda.kulib.kyoto-u.ac.jp/en/item/rb00024043
2/n
I just revived my #Tectoldies blog, which was a little sleepy for a while, with a new post about the first ever described #earthquake surface rupture (that of the 1891 Nobi Mw~7.5 earthquake in central Japan). 1/n
The 1891 fault rupture was indeed perfectly described and interpreted by Bunjiro Kotô in a 1893 article. It is admirably imaged by a B&W photograph in Kotô's article, and by this delicate anonymous watercolour painting 👇🏼, perhaps the first artist view of an active tectonic fault.
Read more: https://tectoldies.mystrikingly.com/blog/the-great-1891-earthquake-in-central-japan-1
My Tectoldies blog is about “the beauty of tectonics – the art of geological sections & other tectonic sketches.” Feel free to explore and comment previous posts. I'll toot about some of them soon.
Robin Lacassin
boosted
RT @cassouman40@twitter.com
#QuiAuraitPuPrédire la crise climatique aux effets spectaculaires encore cet été en 🇫🇷? »
La petite phrase d'@EmmanuelMacron@twitter.com a été vécue comme une claque par les scientifiques, au départ sidérés, puis en colère ; au-delà des émotions, elle suscite aussi bcp d’inquiétude.
Un 🧵👇
🐦🔗: https://twitter.com/cassouman40/status/1610578080652828673
Robin Lacassin
boosted
How beautiful is this? #Etna continues emitting lava, which has been growing into a vast lava field with multiple active lobes reaching a length of more than 1.5 km and a volume estimated at about 1.5-2 million cubic meters. These two photos were taken at nightfall on 2 January 2023 from the northern crest of the Valle del Bove, on the northeast flank of the volcano.
Robin Lacassin
boosted
An eruptive phase started at the #Etna 🇮🇹 volcano in mid-December
A new 🌋 vent has formed at an altitude of ~2,800m
⬇️This new fissure is releasing a lava flow (now more than 1.5 km long) visible in the #Sentinel2 🇪🇺🛰️ images of 20, 23, 28 December & 2 January
🐦🔗: https://n.respublicae.eu/defis_eu/status/1610209753216450562
WHAT ? French president, Emmanuel Macron, literally writes:
Who could have predicted the climate crisis…?
Who 🤔 ?
➡️ Thousands of scientists
➡️ 6 IPCC reports
➡️ 27 COP
➡️ even EXXON researchers tens of years ago
etc…
Here, near #Fontainebleau 60km south of Paris, yesterday's #temperature was higher than 16°C.
For the last day of 2022, tens of T° records broken in western Europe.
To remember that we are in “𝓌𝒾𝓃𝓉𝑒𝓇” I asked Midjourney #AI to generate something with the prompt “𝓃𝑒𝓌 𝓎𝑒𝒶𝓇 𝑒𝓋𝑒 𝒾𝓃 𝐹𝑜𝓃𝓉𝒶𝒾𝓃𝑒𝒷𝓁𝑒𝒶𝓊 𝒻𝑜𝓇𝑒𝓈𝓉” 👇🏼
Robin Lacassin
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After a pause due to the holiday and moving disruption, I’ve updated the list of Earth Science folks on Mastodon - anyone who has submitted their details in the past couple of weeks should now show up.
https://all-geo.org/mastodon-earthsci/
We’re up to 320+ names - I’m wondering if I need to add some organisation/filtering to make it manageable.
If you’d like to add yourself (and haven’t already) go to:
Found a beautiful #myxomycete in the #Cévennes (South of France) few days ago. Probably not exactly the famous laboratory #blob but close to.
I post here this awesome map from Serge Zaka 👇🏼
2022 has been the warmest year on record (since start of the measurements) for most of European countries.
Unfortunately, Serge Zaka is apparently not on Fediverse but he maintains an excellent twitter feed on #climate #agroclimate #weather #agronomy in #France, #Europe: https://twitter.com/SergeZaka (sorry for posting a link to the bird site)
Robin Lacassin
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Sea level rise update - satellite altimetry data now processed through October 2022 (and another increase in rate) 🌊
This graphic is produced by: https://aviso.altimetry.fr/en/data/products/ocean-indicators-products/mean-sea-level.html
Robin Lacassin
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NASA has officially retired the InSight lander on Mars after the solar panels stopped producing enough power to keep it operating. It had a great 4 years of science operations.
https://www.jpl.nasa.gov/news/nasa-retires-insight-mars-lander-mission-after-years-of-science
USGS got very similar mechanism, but puts hypocenter deeper (around 20km). This perhaps means that the #earthquake rupture happened in the Gorda tectonic plate beneath the upper N American plate. The small Gorda plate is plunging under N America along the #Cascadia #subduction zone.
Magnitude Mw6.4 #earthquake in the region of the #Mendocino triple junction, at northern end of the San Andreas fault, #California. Mechanism is strike slip; rupture may have occurred on any of the ~N-S or ~E-W fault plane as it's a tectonically complicated area.
Mechanism Geoscope IPGP: http://geoscope.ipgp.fr/index.php/en/catalog/earthquake-description?seis=nc73821036
Robin Lacassin
boosted
Time to finally do a proper #introduction here before the year is out.
👋 I’m a #ClimateScientist, #geophysicist, #educator and associate #professor @ McGill University in #Canada. My research group works on understanding #SeaLevel and #IceSheets in past, current and future #climate using #NumericalModeling tools and geophysical and geological observations.
Passionate about #education, #outreach, #interdisciplinary research + training and supporting #equity + #inclusion in #academia and #stem.
Time ago, the now scary bird site, was useful for science, knowledge building, hazard communication, etc...
We wrote a paper on that: Rapid collaborative knowledge building via Twitter after significant geohazard events.
Wow Santa Claus answered me 😊 🎉
At least she/he's alive here 😉
QT: https://c.im/@Santaclaus/109523699742828933
@RobinLacassin Finally! All I ask is that I can break into your homes and eat your food without being tracked. #privacymatters
- My IPGP page
- http://www.ipgp.fr/~lacassin
- Tectoldies blog
- https://tectoldies.mystrikingly.com/
Geology, tectonics, earthquakes, seismotectonics, hazard epistemology & sci com.
Senior researcher at Institut de Physique du Globe de Paris (IPGP - CNRS - Univ. Paris Cité). Tektonika DOAJ executive editor.
Joined Nov 2022
