Francesco Rappisi
@seismofra.bsky.social
120 followers 130 following 26 posts
Seismologist at European Center for Geodynamics and Seismology (Lux 🇱🇺​) Born in Italy 🤌🏻 Proud European 🇪🇺​​ Earthquakes | Volcanoes | Nature | Books | Politics
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seismofra.bsky.social
Ani-MR25: the Mediterranean in 3-D 🫵

A new reference for those working on geodynamics, subduction processes, and upper mantle structure.

🎥 Below: dynamic 3D visualizations of the slab models (Alps -> Apennines -> Alboran -> Hellenic -> Carpathians in one movie!)
👉 doi.org/10.1029/2024...
Reposted by Francesco Rappisi
rosalialobue.bsky.social
Earthquakes at #MountEtna reveal magma ascent from deep to shallow crust. 🌋
Temporal variations in #bvalue track magma movement through the volcano’s plumbing system.

Read our new study in #ScienceAdvances ⬇️

www.science.org/doi/10.1126/...

#Volcanology #Seismology #EarthScience #ingv @science.org
Earthquake frequency-magnitude distribution at Mount Etna sheds light on magma ascent in the volcano’s plumbing system
Earthquake frequency-magnitude distribution tracks magma ascent from the deep crust to the surface.
www.science.org
seismofra.bsky.social
Advancing our understanding of these hidden processes is essential for improving seismic and tsunami hazard assessment—especially in regions that are otherwise difficult to study directly.
seismofra.bsky.social
Understanding these systems is critical. For such reason I’m working on a project aiming to monitor subduction slip behavior using remote seismological techniques. By analyzing teleseismic signals, we investigate subtle precursory phases and slow slip phenomena.
seismofra.bsky.social
A strong #earthquake struck the #Kamchatka Peninsula the night of July 29–30, triggering a #tsunami warning in Pacific.
Events like this highlight the seismic threat posed by offshore #subductionzones and their potential for global-scale impact (in terms of human lives and economic consequences)
seismofra.bsky.social
In the Northern Hemisphere people talk about #climatechange only from June to September.
Reposted by Francesco Rappisi
rosalialobue.bsky.social
Ever wondered how #seismic #anisotropy unveils the hidden dynamics of the #Mediterranean? 🌍

Discover our brand-new anisotropic #tomography — bringing fresh insights into crustal structures and mantle flow.

👉 doi.org/10.1029/2024...

⬇️ More related papers from our team in the comments!
seismofra.bsky.social
It involved the @universityofleeds.bsky.social, Università degli Studi di Padova, İstanbul Teknik Üniversitesi, @ingvterremoti.bsky.social and the European Center for Geodynamics and Seismology
seismofra.bsky.social
It has been conducted in collaboration with @rosalialobue.bsky.social, Brandon VanderBeek, Manuele Faccenda, Judith Confal, Seda Yolsal-Çevikbilen, Tuna Eken, Ceyhun Erman, Paola Baccheschi and Silvia Pondrelli.
seismofra.bsky.social
The new anisotropic 3D tomography model provides:

🟢 An updated view of major slabs (Alboran, Apennines, Alps, Dinarides, Carpathians, Hellenic)
🟢 Clear imaging of slab windows and back-arc basin dynamics
🟢 Detailed anisotropic patterns tracing mantle flow and tectonic evolution
seismofra.bsky.social
Ani-MR25: the Mediterranean in 3-D 🫵

A new reference for those working on geodynamics, subduction processes, and upper mantle structure.

🎥 Below: dynamic 3D visualizations of the slab models (Alps -> Apennines -> Alboran -> Hellenic -> Carpathians in one movie!)
👉 doi.org/10.1029/2024...
seismofra.bsky.social
Both works represent important steps forward, each shedding light on different facets of the volcano’s internal workings. And there's more to come: other studies are currently in preparation.

#geoscience #seismology #research #EarthScience #scienceupdate
seismofra.bsky.social
📍 The second study, led by PhD student Gianmarco Del Piccolo, identifies a pressurized magma storage system within a radial dike network located between 6 and 16 km depth—a configuration that could play a key role in Etna’s eruptive behavior.
Go and have a look: lnkd.in/dxp3kThZ
seismofra.bsky.social
Anisotropy helps trace geological features and offer new insight into how tectonic deformation and volcanic processes interact in this complex setting.

Go and have a look: lnkd.in/dRakqpQi
seismofra.bsky.social
📍 The first study, led by Dr @rosalialobue.bsky.social , presents the first-ever P-wave anisotropic tomography based on local earthquakes recorded around Etna.
It provides high-resolution 3D images of both isotropic and anisotropic seismic structures beneath the #volcano.
seismofra.bsky.social
#Etna is speaking loudly today
Its activity intensified, producing an impressive plume, accompanied by pyroclastic flows and, later, sustained lava fountains.
This episode comes just as two recent scientific studies offer fresh perspectives on Etna’s internal structure and dynamics.
Reposted by Francesco Rappisi
danieled.bsky.social
🔴 L' #Etna ha generato un flusso piroclastico dal Cratere di Sud-Est, senza superare la Valle del Leone.
In corso fontana di lava, tremore e attività infrasonica molto elevati.
Nessuna deformazione significativa rilevata.

(segui t.me/BlueDotNews)

#eruzione #Sicilia #allerta
Reposted by Francesco Rappisi
drnereide.bsky.social
"You cannot hope to build a better world without improving the individuals. To that end, each of us must work for his own improvement and, at the same time, share a general responsibility for all humanity..."

― Marie Curie

Image in the public domain, circa 1900, by unknown author

🧪 ⚛️ #histsci
Portrait of Marie Curie by unknown author, c.1900.
Marie is sitting in a chair, with her left arm resting on one armrest and the other in her lap. She is wearing a dark dress from that era.

Via Wikimedia Commons:  https://commons.wikimedia.org/wiki/File:M._Curie_1900.jpg
Reposted by Francesco Rappisi
borisetneo.bsky.social
A few scenes of the new Strombolian activity at #Etna 's Southeast Crater during the night of 15-16 March 2025, seen from 5 km distance. Looks big, but actually this is a rather modest activity for Etna standards.
seismofra.bsky.social
I’m a big fan of @specfem.org
I used it in our 2024 GJI study to generate a waveform dataset for testing a tomographic method and assessing distortions in slab recovery. The geodynamic model and seismic dataset will be publicly available soon for benchmarking!

#Seismology

doi.org/10.1093/gji/...
Artificial age-independent seismic anisotropy, slab thickening and shallowing due to limited resolving power of (an)isotropic tomography
SUMMARY. Seismic anisotropy is key to constrain mantle flow, but it is challenging to image and interpret it. Existing large-scale tomography models of sei
doi.org
Reposted by Francesco Rappisi
kbyip.bsky.social
Kilauea started fountaining again in the last hour.

www.youtube.com/live/oG5zz9S...
Screenshot from USGS livestream in Kilauea’s crater. Glowing orange lava erupting vertically and also flowing on surface toward the left
Reposted by Francesco Rappisi
seismo-steve.bsky.social
Your last chance to register for our Ocean Bottom Geophysics meeting on Friday at the Royal Astronomical Society, London. We have an exciting lineup of presentations. You can also join our meeting online.
Tickets only £17 for in-person attendance and £6 online - a bargain!
ras.ac.uk/events-and-m...
Ocean Bottom Geophysics: Progress and Perspectives
RAS Meetings | Friday, 14 of March 2025 - 10:30 | Ocean Bottom Geophysics: Progress and Perspectives
ras.ac.uk
Reposted by Francesco Rappisi
kosmi.bsky.social
Today's view of Etna volcano in Sicily.

Image taken by Sentinel-2.