Robin Lacassin @RobinLacassin@social.cleverlibre.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
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.
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” 👇🏼
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)
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
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.
The government of #Germany posted this on the scary bird site:
#Freedom of the press must not be switched on and off at will. As of today, the #journalists below can no longer follow, comment or criticize us. We have a problem with that twitter.
Le Monde: Twitter suspend des comptes de journalistes : l’Union européenne menace le réseau social de « sanctions »
Twitter suspends journalist accounts: EU threatens social network with 'sanctions'
Just posted this 👇🏼 on the scary bird site.
Will see what happens.
Peer review, a huge waste of time, and therefore money ?
Figure 👇🏼 and excerpts taken from Aczel et al. 2021 https://doi.org/10.1186/s41073-021-00118-2
“…the total time reviewers globally worked on peer reviews was over 100 million hours in 2020, equivalent to over 15 thousand years. The estimated monetary value of the time US-based reviewers spent on reviews was over 1.5 billion USD in 2020 […] The numbers highlight the enormous amount of work and time that researchers provide to the publication system.”
(authors add: By design, our results are very likely to be under-estimates as they reflect only a portion of the total number of journals worldwide.)
QT Hawaiian Volcano Observatory (HVO #USGS) about #MaunaLoa #volcano:
“Mauna Loa is no longer erupting. Lava supply to the fissure 3 vent on the Northeast Rift Zone ceased on December 10 and sulfur dioxide emissions have decreased to near pre-eruption background levels. Volcanic tremor and earthquakes associated with the eruption are greatly diminished […]
Spots of incandescence may remain near the vent, along channels, and at the flow front for days or weeks as the lava flows cool. However, eruptive activity is not expected to return based on past eruptive behavior.”
Their photo 👇🏼 shows channel below the volcanic vent drained of lava
Huge cranes in #Paris. At work on #NotreDame restoration site.
Today at @wearetektonika #DOAJ we accepted our two first papers for publication 🎉 !
Proud to have been executive editor for the first one and thanks to Jack Williams who managed the review process as associate editor.
(reminder: we are open for submission since the end of May)
Conférences publiques organisées pas l'Observatoire Volcanologique et Sismologique de #Martinique (OVSM) de l'Institut de Physique du Globe de Paris (IPGP):
- Un observatoire sous-marin connecté pour déchiffrer l’activité sismique des Saintes.
- Deux ans après le passage en vigilance volcanique jaune, un point sur l’activité du #volcan la Montagne Pelée.
- 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
