GMPV8.6 | Volcanic processes: tectonics, deformation, geodesy, unrest
EDI
Volcanic processes: tectonics, deformation, geodesy, unrest
Convener: Michael Heap | Co-conveners: Valerio Acocella, Virginie Pinel, Sigurjon Jonsson, Thorbjorg AgustsdottirECSECS, Kyriaki DrymoniECSECS, Tim DavisECSECS
Orals
| Fri, 19 Apr, 10:45–12:30 (CEST), 14:00–15:45 (CEST), 16:15–18:00 (CEST)
 
Room D2
Posters on site
| Attendance Thu, 18 Apr, 16:15–18:00 (CEST) | Display Thu, 18 Apr, 14:00–18:00
 
Hall X1
Posters virtual
| Attendance Thu, 18 Apr, 14:00–15:45 (CEST) | Display Thu, 18 Apr, 08:30–18:00
 
vHall X1
Orals |
Fri, 10:45
Posters on site |
Thu, 16:15
Posters virtual
Thu, 14:00
The session deals with the documentation and modelling of the tectonic, deformation and geodetic features of any type of volcanic area, on Earth and in the Solar System. The focus is on advancing our understanding on any type of deformation of active and non-active volcanoes, on the associated behaviours, and the implications for hazards. We welcome contributions based on results from fieldwork, remote-sensing studies, geodetic and geophysical measurements, analytical, analogue and numerical simulations, and laboratory studies of volcanic rocks.
Studies may be focused at the regional scale, investigating the tectonic setting responsible for and controlling volcanic activity, both along divergent and convergent plate boundaries, as well in intraplate settings. At a more local scale, all types of surface deformation in volcanic areas are of interest, such as elastic inflation and deflation, or anelastic processes, including caldera and flank collapses. Deeper, sub-volcanic deformation studies, concerning the emplacement of intrusions, as sills, dikes and laccoliths, are most welcome.
We also particularly welcome geophysical data aimed at understanding magmatic processes during volcano unrest. These include geodetic studies obtained mainly through GPS and InSAR, as well as at their modelling to imagine sources.

The session includes, but is not restricted to, the following topics:
• volcanism and regional tectonics;
• formation of magma chambers, laccoliths, and other intrusions;
• dyke and sill propagation, emplacement, and arrest;
• earthquakes and eruptions;
• caldera collapse, resurgence, and unrest;
• flank collapse;
• volcano deformation monitoring;
• volcano deformation and hazard mitigation;
• volcano unrest;
• mechanical properties of rocks in volcanic areas.

Orals: Fri, 19 Apr | Room D2

Chairpersons: Michael Heap, Valerio Acocella, Virginie Pinel
10:45–10:50
Introduction
Volcano uplift, subsidence, and collapse
EGU24-13606
|
ECS
|
On-site presentation
The role of regional stress and pre-existing faults on collapse caldera onset and architecture
Matias Villarroel et al.
EGU24-17868
|
ECS
|
On-site presentation
A mechanical model for lava dome deformations using the visco-poroelastic damage rheology 
Mehdi Nikkhoo and Vladimir Lyakhovsky
EGU24-10865
|
On-site presentation
Linking long-term magma evolution and short-term volcano deformation 
Gregor Weber et al.
EGU24-18593
|
ECS
|
On-site presentation
Evaluating the North-South deformation component from DInSAR data in volcanic framework.
Andrea Barone et al.
EGU24-3516
|
solicited
|
Highlight
|
On-site presentation
Patterns of deformation and connectivity at Western Galápagos Volcanoes
Susanna Ebmeier et al.
Volcanic unrest and failure 1
EGU24-8016
|
ECS
|
On-site presentation
Seismicity near Mayotte explained by interacting magma bodies: Insights from numerical modeling
Clement de Sagazan et al.
Lunch break
Chairpersons: Kyriaki Drymoni, Tim Davis, Sigurjon Jonsson
14:00–14:05
Introduction
Volcanic unrest and failure 2
EGU24-4510
|
ECS
|
On-site presentation
A New Dike Propagation Model Linking Seismicity and Rock Damage Mechanics
Yan Zhan and Yiwen Huang
EGU24-19088
|
On-site presentation
Locating the Auckland Volcanic Field's magma reservoir through magma pathway retrogression
Eleonora Rivalta et al.
EGU24-19530
|
On-site presentation
La Palma (Canary Islands) eruption 2021: Forecast and hindcast of eruption duration
Maria Charco et al.
EGU24-2645
|
ECS
|
On-site presentation
Fissure-type vents at 2021 Cumbre Vieja volcanic eruption 
David Sanz-Mangas et al.
EGU24-3407
|
On-site presentation
Geophysical responses to an environmentally-boosted volcanic unrest
Luca De Siena et al.
Special focus: recent activity at Campi Flegrei
EGU24-6693
|
solicited
|
Highlight
|
On-site presentation
Real-time forecasts of unrest at Campi Flegrei, Southern Italy, 2013-2023.
Christopher Kilburn et al.
EGU24-11227
|
On-site presentation
From subsidence to uplift at Campi Flegrei, with an eye to Vesuvio
Luca Crescentini et al.
Coffee break
Chairpersons: Sigurjon Jonsson, Valerio Acocella, Virginie Pinel
16:15–16:20
Introduction
Volcanic unrest and failure 3
Special focus: recent volcanic activity in Iceland
EGU24-18083
|
solicited
|
Highlight
|
On-site presentation
Interpreting seismicity and earthquake locations during the recent unrest on the Reykjanes Peninsula in SW-Iceland
Kristín Jónsdóttir et al.
Closing remarks

Posters on site: Thu, 18 Apr, 16:15–18:00 | Hall X1

Display time: Thu, 18 Apr 14:00–Thu, 18 Apr 18:00
Chairpersons: Michael Heap, Tim Davis, Kyriaki Drymoni
EGU24-100
|
ECS
|
OSPP
|
On-site presentation
 Deconstructing the role of hydrothermal alteration in 3D volcanic dome collapse in La Soufrière de Guadeloupe
Kendra Ní Nualláin and Claire Harnett
EGU24-11747
|
On-site presentation
Relating magma dynamics and ground deformation patterns at Mount Etna
Owen McCluskey et al.
EGU24-16539
|
ECS
|
On-site presentation
Compaction and creep deformation of volcaniclastic material during burial 
Edgar U. Zorn et al.
EGU24-19494
|
ECS
|
On-site presentation
The influence of hotspot topography on mega-dyke propagation: theory and models
Tim Davis et al.
EGU24-13429
|
On-site presentation
Analyzing Seismic Signals of the 2021 Dayoukeng Mud Ejection in Northern Taiwan
Ya-Chuan Lai et al.
EGU24-17383
|
ECS
|
OSPP
|
On-site presentation
What controls inter-rift volcanism?
Valentina Armeni et al.
EGU24-21930
|
On-site presentation
High resolution monitoring of active faulting at the instable flank of Mt. Etna
(withdrawn)
Pia Victor et al.
EGU24-4731
|
On-site presentation
Is it really a Mogi or a mirage caused by the assumption of medium homogeneity?
Antonella Amoruso and Luca Crescentini
EGU24-13399
|
On-site presentation
Magma storage and transport along volcanic rift zones constrained by geodetic data and dynamical models.
(withdrawn)
Alberto Roman and Paul Lundgren
EGU24-12793
|
ECS
|
On-site presentation
Poroelastic Deformation at Soufrière Hills: A New Perspective on Volcano Deformation Dynamics 
(withdrawn)
Rami Alshembari et al.
EGU24-18471
|
ECS
|
On-site presentation
Gales: a multiphysics code for volcanic deformation
Deepak Garg et al.
EGU24-19503
|
On-site presentation
Structural elements from gravity and magnetic data in the Phlegrean Fields
Giovanni Florio et al.

Posters virtual: Thu, 18 Apr, 14:00–15:45 | vHall X1

Display time: Thu, 18 Apr 08:30–Thu, 18 Apr 18:00
Chairpersons: Michael Heap, Valerio Acocella, Virginie Pinel