Today, digging through archives, I found few old papers by Maurice Mattauer – my PhD supervizor looooooong time ago – Paul Tapponnier – with whom I worked for many years here at IPGP – François Proust – One of my teachers when I was an undergraduate – and Jean-Pierre Petit.
I extracted some figures for my #Tectoldies blog.
They are about the High Atlas mountains and Tizi n'Test Fault, site of the Morocco 8 Sept #earthquake and of the ensuing #disaster that claimed thousands of lives.
Have a look to my #Tectoldies blog post:
https://tectoldies.mystrikingly.com/blog/the-tizi-n-test-fault-in-the-high-atlas-of-morocco
For those who don't already know, I intermittently maintain a blog called:
“The Beauty of Tectonics – The art of geological sections & other tectonic sketches and amazing maps”
It's here: https://tectoldies.mystrikingly.com
J'ai répondu à 3 questions sur la chaîne Youtube de l'IPGP:
📺 #Séisme du 8 septembre au #Maroc - Robin Lacassin, chercheur CNRS et géologue à l'Institut de Physique du Globe de Paris et à l'Université Paris Cité revient sur le contexte sismo-tectonique et les mécanismes à l’origine de ce tremblement de terre.
Plusieurs catastrophes en Méditerranée ces derniers jours.
Les pluies diluviennes et #inondations en Espagne et Grèce sont aggravées par le changement climatique. Ce n'est pas le cas du #séisme au Maroc qui est un évènement naturel sans lien avec les activités humaines.
Même si des séismes de magnitude faible à modérée peuvent être déclenchés par l'homme, par exemple lors d'exploitations pétrolières, la très grande majorité des séismes destructeurs sont naturels et liés au fonctionnement géologique des failles et à la #tectonique des plaques.
Les #séismes comme celui du Maroc sont des aléas naturels. La #catastrophe arrive lorsque ils se combinent à la #vulnérabilité importante des constructions.
En cela, il n'y a pas de vraie "catastrophe naturelle", il y a toujours un facteur humain pour passer de l'#aléa au désastre.
Pensées et courage aux populations affectées ♥️
#Séisme au Maroc : « Sa survenue dans cette région n’est pas une surprise » mes explications dans Le Monde
#Séisme destructeur au Maroc. Magnitude Mw6.9, epicentre à ~70km au sud-ouest de Marrakesh.
Le mécanisme (tenseur de moment) implique une rupture sur une faille chevauchante liée à la tectonique du Haut Atlas.
Pensées pour les victimes, et courage ♥️
We are in September and France is sweating under a strong #heatwave repeatedly breaking monthly record at many places.
T°max last 24h, only values ≥34°C indicated.
#climatechange #ClimateEmergency
Map source InfoClimat: https://www.infoclimat.fr/fr/cartes/observations-meteo/temps-reel/temperature_max/carte-interactive.html#5.768102010091146/46.5343/6.03
Meanwhile, the first page of Le Monde reference journal 👇🏼
"Climate, the summer of global shift"
#climatecrisis #ClimateEmergency #climatechange #heatwave #disasters
First time an #heatwave alert is issued in September by @meteofrance.
Area includes Paris conurbation and the entire Île de France. Forecast T° max 35-37°C, and tropical nights (>20°C).
We are in climate emergency.
And then, they were 8 !
We are very excited to welcome Kim Welford and Graeme Eagles to our Executive Editors team 🙌
We will continue recruiting editors over the coming months, so if you'd like to join the team apply via https://tektonika.online (the form is pinned to the right-hand sidebar)
Exceptional sat. image (Terra/MODIS) of the low-pressure area (cut-off low) off coast of Portugal. It carries Saharan dust across the Mediterranean and generates a record-breaking #heatwave in the west and center of France. Dusty skies covers NE Spain and SW France.
Le Monde et Meteo France:
"L’été 2023, marqué par une #canicule exceptionnelle fin août, est parmi les plus chauds historiquement mesurés en France, seulement battu par l’été record de 2003 et les deux étés très récents de 2022 et 2018, a annoncé lundi 4 septembre Météo-France."
It's September 4th.
Coming back from summer break?
Coming back from the field?
Urgent to read our first editorial !
It outlines the journal's story and our future plans and objectives (for #Tektonika #DOAJ and #openscience).
Give it a read! > https://tektonika.online/index.php/home/article/view/56
That song 👇🏽 for #earthquake awareness by Pashupati Sharma & Devi Gharti Magar with the words of Dr. Shiba Subedi from #Seismology at School in #Nepal 🙏🏽👏🏽❤️
Chorus says "Everyone learns how to prepare to survive an earthquake".
"Seismology at School in Nepal" program has been working to make people aware of earthquakes and their better preparation in Nepal.
Today, one of the oldest and most famous French weather observatory, Mont Aigoual at 1567m asl, smashed its 125yr old record, overpassing 30°C for the first time, with 30.3°C 🌡️ (and the day is not finished).
At lower altitude in SE France, 40°C largely overpassed everywhere. August all time records, sometimes absolute records, smashed in many places.
Strangely the voices of the climate change denialists have become silent…
#heatwave #canicule #ClimateCrisis #ClimateEmergency #DontLookUp #MontAigoual
And now it's two-thirds of France under #heatwave alert, with 19 department with red flag (extreme).
Many records for the month of August have fallen, and this will continue tomorrow.
Red flag (max level alert) in 4 French departments because of heat wave. More than half of France under orange alert…
#ClimateCrisis #ClimateEmergency #dontlookup #canicule #heatwave
End of July, #Tektonika #DOAJ has published 3 new articles
3️⃣ van der Linden and van Hinsbergen present the Mid-Ocean Ridge Generator (MORGen) algorithm, based on pyGPlates. MORGen reduces the laborious task by automating the drawing of mid-ocean ridge geometries…
https://tektonika.online/index.php/home/article/view/14
Publishing and reading in #DOAJ is free thanks to voluntary work by managing group, editors, reviewers, technical team, and support of host Universities.
End of July, #Tektonika #DOAJ has published 3 new articles
2️⃣ Alghuraybi et al. use borehole and 3D seismic reflection data to quantify the lateral propagation and displacement accumulation rates for syn-kinematic faults. They argue that these faults provide a unique snapshot of the earliest stage of fault growth.
https://tektonika.online/index.php/home/article/view/29
Publishing and reading in #DOAJ is free thanks to voluntary work by managing group, editors, reviewers, technical team, and support of host Universities.
End of July, #Tektonika #DOAJ has published 3 new articles
1️⃣ Magee et al. use 3D reflection seismology to reach a better understanding of the 3D structure of dyke-induced faults and their relationship to the geometry and emplacement dynamics of their causal dykes.
https://tektonika.online/index.php/home/article/view/25
Publishing and reading in #DOAJ is free thanks to voluntary work by managing group, editors, reviewers, technical team, and support of host Universities.
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.