Gaspard Farge

Postdoc @EpsUcsc | Listening to water trickling in faults&volcanoes and other seismic chatter

[Gaspard Farge @gasfarge]

Exciting paper led by C. Journeau!

🌋✨Fast migrations of tremor under Kamtchatka volcanoes outline an active trans-crustal magmatic system, reaching from the surface to more than 30km deep!

📜 OA paper https://t.co/Pu8aWdh8xz
📺 Animated catalog https://t.co/yE9HeAkcB6

🧵👇

[Gaspard Farge @gasfarge]

Sorry for the moiré pattern, might update later!

[Gaspard Farge @gasfarge]

Exciting paper led by C. Journeau!

🌋✨Fast migrations of tremor under Kamtchatka volcanoes outline an active trans-crustal magmatic system, reaching from the surface to more than 30km deep!

📜 OA paper https://t.co/Pu8aWdh8xz
📺 Animated catalog https://t.co/yE9HeAkcB6

🧵👇

[Gaspard Farge @gasfarge]

We think the fast migrations (~1-10 km/hr) are too fast to be the actual gas/magma moving in the system: they must be evidence of fast pressure transients transients in the fluid, resulting from the very dynamic permeability of the magmatic system.

[Monterey Bay Aquarium @MontereyAq]

🐋 THIS IS NOT A FLUKE 🐋 Humpback whales are singing RIGHT NOW in the Monterey Bay, listen in on @MBARI_News's hydrophone feed!! https://t.co/VCvI0d4tzO

[Gaspard Farge @gasfarge]

Wooo check this out, so proud of the many-talented @LucILLIEN

[Robin Lacassin - @rlacassin.bsky.social @RLacassin]

After 2 covidcancellations, we are so happy to announce the:
One day Doctorate Congress organized by PhD students of École Doctorale STEP'UP
Posters outside to discuss geology, geophysics, geochemistry, volcanology, astrophysics, cosmology, particle physics, planetary sciences…

[Benjamin Wheeler @Wheeler_DeepSea]

Incredible first images of submarine lava flows of the Mayotte volcano by the just finished #Geoflamme cruise with the #rov of @Ifremer_fr #volcano #ABYSS
More images on : https://t.co/qRy4k15XBP

[Gaspard Farge @gasfarge]

Check out this paper my friend @LucILLIEN wrote! A very neat use of seismic noise to constrain how steep montainous slopes store and release water!

[Cyril Gadal, PhD @CyrilGadal]

Checkout out last paper "Spatial and Temporal Development of Incipient Dunes" published some time ago in Geophysical Research Letters #AGUpubs

https://t.co/USzyTebyh9

How different can the elevation profile be near the upstream edge of the dune field and within it ? 1/4

[Gaspard Farge @gasfarge]

@SeismoLalit https://t.co/aq24sdvwtR
maybe not the best format to share notebooks... copy/paste the raw texts into correct filenames, and it should run though! Either with fake or real data.

[Gaspard Farge @gasfarge]

🚨🥁Preprint alert! @EarthArXiv

https://t.co/P9UsT2U8jj

It’s about how fluids move within deep fault zones, and how it could generate patterns of seismicity that look a lot like tremor swarms 💦✨

Read on for more on our little model and its implications… 1/9

[Gaspard Farge @gasfarge]

@CompellingN @matplotlib Notebooks for a few of these should feature in the documentation of the python package for the model (which I'm still writing...), but I can quicly format a specific one if you PM me which!

[Gaspard Farge @gasfarge]

More details the preprint @EarthArXiv ! If you feel like it, constructive comments are GREATLY appreciated!

(and all the ❤️ goes to @matplotlib for allowing me to satisfy all my graphical obsessions)

[Gaspard Farge @gasfarge]

To sum up, we propose a mechanism for elementary permeability variations in a fault zone, caused by the ambient fluid pressure and linked to tremor generation. We find that fluid flux controls the seismicity and that this system draws tremor-like patterns. 9/9