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Alessandro La Rosa

@alarosa

Post-doc researcher in solid Earth geophysics at University of Pisa - Department of Earth Sciences. InSAR πŸ›° Tectonics ⛰️ Volcanoes πŸŒ‹ Earth Observation 🌍

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14.11.2024
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Latest posts by Alessandro La Rosa @alarosa

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Frontiers | New InSAR and seismology analysis of the 1995 Aigion Mw 6.2 earthquake (Greece) As early rifts initiate and evolve, different fault geometries and kinematics may form. In particular, it is debated at what stage low–angle normal faulting ...

New paper by Marella Parnas coming out soon re-analysing the 1995 Aigion earthquake of the Corinth rift using InSAR and teleseismic data, and coming up with a new interpretation of the likely causative fault. @sorcerinsar.bsky.social @alarosa.bsky.social
www.frontiersin.org/journals/ear...

30.01.2026 14:47 πŸ‘ 2 πŸ” 3 πŸ’¬ 1 πŸ“Œ 0

Errata: diking occurred in July-August 2025

27.11.2025 06:00 πŸ‘ 0 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0
Frontiers | Segmented dike intrusion linked to multi-level magma storage during and before the 2025 eruption at Erta Ale (East Africa) IntroductionDike intrusions can assist continental rifting and plate divergence. However, our understanding of the magma dynamics during diking and the archi...

Following the #HayliGubbi eruption, our paper on the Erta Ale dike of Jun-Jul is finally out. InSAR, optical data and seismicity showed the temporal evolution of the intrusion and the interaction of magmatic sources, including a sill inflation in Hayli Gubbi. @earth-science.bsky.social #geoscience

26.11.2025 07:26 πŸ‘ 13 πŸ” 14 πŸ’¬ 2 πŸ“Œ 0

The #HayliGubbi eruption came after a period of unrest that started in June-July 2025 with a large dike intrusion in the southern sector of the Erta Ale rift. Our InSAR study will be out soon but you can have a summary at the link below. @earth-science.bsky.social #geoscience

25.11.2025 04:11 πŸ‘ 22 πŸ” 8 πŸ’¬ 0 πŸ“Œ 1
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Hayli Gubbi - some of my photos from the Hayli Gubbi tephra sampling expedition on 24 Nov 2025 from around 10 km north of Hayli Gubbi @sorcerinsar.bsky.social @alarosa.bsky.social @wattsvolcanology.bsky.social @volckaren.bsky.social @sorcerinsar.bsky.social @alarosa.bsky.social

25.11.2025 02:33 πŸ‘ 16 πŸ” 7 πŸ’¬ 0 πŸ“Œ 1
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Cross-scale strain analysis in the Afar rift (East Africa) from automatic fault mapping and geodesy Abstract. The formation of continental rift systems is characterised by the interplay of magmatic and tectonic processes. Their evolution involves a wide range of timescales, from centennial scales of...

Our new study on @egu.eu SE combines automatic fault mapping, geodesy and rock dating to reconstruct the tectonic and magmatic evolution of the Afar rift during the last 4.5 Myrs. @sasbrune.bsky.social @sorcerinsar.bsky.social @derekkeir.bsky.social @gimmi-p.bsky.social @earth-science.bsky.social

07.10.2025 07:17 πŸ‘ 19 πŸ” 7 πŸ’¬ 0 πŸ“Œ 1
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First day passed at LASI VII in Iceland, with many Inspiring talks and posters on magmatic intrusions in various geodynamic contexts! We presented our 2024 natcomm study on the pressurizion of a deep sill network in the Afar rift @sorcerinsar.bsky.social @derekkeir.bsky.social

10.09.2025 08:38 πŸ‘ 5 πŸ” 2 πŸ’¬ 0 πŸ“Œ 0
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Scientific response to the 2024–2025 dyke intrusions in the Fentale-Dofen Region, Ethiopia: geophysical monitoring, surface manifestations, and hazard mapping - Bulletin of Volcanology In continental rifts, tectonic deformation, magmatic processes, and earthquakes interact dynamically reflecting the crust’s complex response to extensional stress and evolving subsurface and surface c...

If you are interested in the Fentale diking episode then have a read of Prof. Elias Lewi's new paper in Bull. Volc. link.springer.com/article/10.1... @alarosa.bsky.social @sorcerinsar.bsky.social

15.07.2025 04:54 πŸ‘ 17 πŸ” 9 πŸ’¬ 0 πŸ“Œ 0
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Congrats to Birhan Kebede on successfully defending her PhD at University of Florence today. Thanks to her defence committee too. @sorcerinsar.bsky.social @alarosa.bsky.social

29.05.2025 18:45 πŸ‘ 14 πŸ” 3 πŸ’¬ 0 πŸ“Œ 0
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##gazalastday ##ultimogiornodigaza

09.05.2025 12:45 πŸ‘ 3 πŸ” 1 πŸ’¬ 0 πŸ“Œ 0
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Reha Chandresh about to start her poster about Afar at @egu.eu @sorcerinsar.bsky.social @alarosa.bsky.social @https://meetingorganizer.copernicus.org/EGU25/EGU25-4765.html @talents-dn.bsky.social

02.05.2025 06:38 πŸ‘ 13 πŸ” 3 πŸ’¬ 0 πŸ“Œ 0
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Continuous Subsidence of Dallol Volcano Caused by Magmatic, Hydrothermal, and Salt Dissolution Processes: Insights From InSAR Observations InSAR study of deformation in the magmatically and geothermally active area of Dallol, Danakil, East African rift InSAR time series and velocity maps show three subsiding deformation signals on t...

Congrats to Birhan Kebede on the publication of her second PhD paper about the continuous subsidence of Dallol in Afar agupubs.onlinelibrary.wiley.com/doi/full/10.... @alarosa.bsky.social @afardalloldrilling.bsky.social

10.04.2025 07:40 πŸ‘ 7 πŸ” 4 πŸ’¬ 0 πŸ“Œ 0
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πŸ“’If you are interested in InSAR applications in 🌎 Sciences, don't miss this webinar organized by BeGEO, IREA-CNR and Progressive Systems. Register by scanning the QR code or at docs.google.com/forms/d/e/1F... πŸŒπŸ›°βš’οΈ @earth-science.bsky.social #geoscience #AcademicSky

01.04.2025 11:56 πŸ‘ 5 πŸ” 3 πŸ’¬ 0 πŸ“Œ 0
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πŸ“’ ECR and students in Earth Sciences can still submit their abstract to the BeGEO2025 conference. A great opportunity to meet new colleagues and share your research in the wonderful Naples! Submit here: www.begeos.it/abstract/ πŸŒ‹πŸ›°β›°οΈβš’οΈ @earth-science.bsky.social #earth-science #geoscience #AcademicSky

29.03.2025 19:12 πŸ‘ 6 πŸ” 4 πŸ’¬ 0 πŸ“Œ 0

@earth-science.bsky.social

14.03.2025 18:19 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
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BeGEO scientists 2025: the 3rd conference of young Earth scientists in Italy Born at the feet of active volcanoes, a group of young Earth scientists works for connecting colleagues in Italy and around the globe. One of the main challenges faced by those approaching the academi...

2 weeks are left to submit your abstract to the international BeGEO conference for young Earth scientists. If you don't know our reality, read more about us at this @egu.eu blog.

14.03.2025 16:19 πŸ‘ 3 πŸ” 2 πŸ’¬ 1 πŸ“Œ 0
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The 2024 Fentale Diking Episode in a Slow Extending Continental Rift A seismic sequence with several >M5 earthquakes occurred in the Fentale region of the Ethiopian rift during September–November 2024 InSAR models show ground motion dominated by rapid dike intrusi...

If you are interested in the Fentale diking episode then feel free to read this GRL paper just out
agupubs.onlinelibrary.wiley.com/doi/full/10.... @alarosa.bsky.social

07.03.2025 08:33 πŸ‘ 7 πŸ” 4 πŸ’¬ 1 πŸ“Œ 0
Map of earthquake sequence from https://earthquake.usgs.gov/earthquakes/eventpage/us7000pdu6/moment-tensor

Map of earthquake sequence from https://earthquake.usgs.gov/earthquakes/eventpage/us7000pdu6/moment-tensor

Moment tensor solution of earthquake from https://earthquake.usgs.gov/earthquakes/eventpage/us7000pdu6/moment-tensor

Moment tensor solution of earthquake from https://earthquake.usgs.gov/earthquakes/eventpage/us7000pdu6/moment-tensor

M6.0 just now in Ethiopia, highest magnitude #earthquake in the swarm up until this point in time. The moment tensor only shows 12% double couple, which commonly means that the earthquake is not caused by rupture on a single flat fault plane (or it could just be poorly determined). πŸŒ‹πŸ§ͺβš’οΈ

14.02.2025 21:03 πŸ‘ 31 πŸ” 9 πŸ’¬ 4 πŸ“Œ 0
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β€œNobody Listened To Us”: Geophysics Expert Laments Culture Of Neglect, Warns Quakes Could Grow Worse Professor Atalay Ayele is the Director of the Institute of Geophysics, Space Science and Astronomy at Addis Ababa University. Holding a postgraduate degree in

This is a very brave and forthright interview by Prof. Atalay Ayele regarding the recent earthquakes in Ethiopia:

www.thereporterethiopia.com/43289/

13.01.2025 23:25 πŸ‘ 9 πŸ” 3 πŸ’¬ 0 πŸ“Œ 0

Thanks for sharing! πŸ™‚

14.01.2025 12:10 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
Ethiopian national defense forces vehicles are widely participating in the activities to rescue people in Awash, Fentale and other areas from the potential disaster caused by the earthquake

Ethiopian national defense forces vehicles are widely participating in the activities to rescue people in Awash, Fentale and other areas from the potential disaster caused by the earthquake

Ethiopia: The Disaster Risk Management Commission with the Ethiopia military has evacuated over 20,500 people from earthquake-prone areas in Afar and Oromia. In Afar, 7,000 of 15,000 at-risk residents in Awash Fentale Woreda and 6,223 of 20,000 in Dulecha Woreda have been relocated.

04.01.2025 19:34 πŸ‘ 5 πŸ” 2 πŸ’¬ 1 πŸ“Œ 2

The interferogram is obtained from ESA Sentinel-1 images acquired the 17 and 29 Dec. Each color cycle is about 2.8 cm of displacement. Red-to-blue is a motion toward the satellite.

03.01.2025 18:11 πŸ‘ 0 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0
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New magma intrusion in Fentale seen by Sentinel interferogram made by UNIPI group in support to Addis Abeba University

30.12.2024 08:19 πŸ‘ 30 πŸ” 10 πŸ’¬ 3 πŸ“Œ 4

See you online on Monday!! πŸ™‚πŸŒπŸ›°

26.11.2024 13:46 πŸ‘ 2 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0