Dr James Hickey 🌋🇪🇺
@jameshickey77.bsky.social
Volcanologist 🌋 | Geophysicist | Associate Professor @ Uni of Exeter, Dept Earth & Environmental Sciences | SciComm & Outreach | 🏃🏼♂️🏑🚴🏼♂️🧘🏼♂️🤸🏄🏼♂️⛷🧗🏼♂️
As well as testing the models, we spend time discussing their implementation and benchmarking.
We provide a range of model files with the paper, as well as detailed instructions on how to build poroelastic magma mush deformation models using Finite Element modelling software (COMSOL Multiphysics).
We provide a range of model files with the paper, as well as detailed instructions on how to build poroelastic magma mush deformation models using Finite Element modelling software (COMSOL Multiphysics).
October 17, 2025 at 3:05 PM
As well as testing the models, we spend time discussing their implementation and benchmarking.
We provide a range of model files with the paper, as well as detailed instructions on how to build poroelastic magma mush deformation models using Finite Element modelling software (COMSOL Multiphysics).
We provide a range of model files with the paper, as well as detailed instructions on how to build poroelastic magma mush deformation models using Finite Element modelling software (COMSOL Multiphysics).
We also contrast entirely poroelastic magma mushes, with magma mushes that contain both poroelastic regions AND melt-rich domains.
The composition of the mush can alter both the spatial and temporal ground deformation patterns for an identical magma resupply simulation.
The composition of the mush can alter both the spatial and temporal ground deformation patterns for an identical magma resupply simulation.
October 17, 2025 at 3:05 PM
We also contrast entirely poroelastic magma mushes, with magma mushes that contain both poroelastic regions AND melt-rich domains.
The composition of the mush can alter both the spatial and temporal ground deformation patterns for an identical magma resupply simulation.
The composition of the mush can alter both the spatial and temporal ground deformation patterns for an identical magma resupply simulation.
Melt compressibility also impacts the temporal evolution of ground deformation, and how we may experience post-injection uplift or subsidence.
Awkwardly, in terms of interpreting deformation, the effect of compressibility also trades off with mush reservoir geometry...
Awkwardly, in terms of interpreting deformation, the effect of compressibility also trades off with mush reservoir geometry...
October 17, 2025 at 3:05 PM
Melt compressibility also impacts the temporal evolution of ground deformation, and how we may experience post-injection uplift or subsidence.
Awkwardly, in terms of interpreting deformation, the effect of compressibility also trades off with mush reservoir geometry...
Awkwardly, in terms of interpreting deformation, the effect of compressibility also trades off with mush reservoir geometry...
In this paper, Rami explores different modelling approaches to simulate volcano ground deformation from melt resupply to magma mushes.
Key parameters are tested: porosity, permeability, compressibility, mush geometry, and composition.
Melt compressibility has a big effect on deformation amplitude.
Key parameters are tested: porosity, permeability, compressibility, mush geometry, and composition.
Melt compressibility has a big effect on deformation amplitude.
October 17, 2025 at 3:05 PM
In this paper, Rami explores different modelling approaches to simulate volcano ground deformation from melt resupply to magma mushes.
Key parameters are tested: porosity, permeability, compressibility, mush geometry, and composition.
Melt compressibility has a big effect on deformation amplitude.
Key parameters are tested: porosity, permeability, compressibility, mush geometry, and composition.
Melt compressibility has a big effect on deformation amplitude.
The story continues...
August 7, 2025 at 3:00 PM
The story continues...
AI iS gOiNG tO TaKE oVeR tHE W0rLd...
August 7, 2025 at 2:50 PM
AI iS gOiNG tO TaKE oVeR tHE W0rLd...
I mentioned this to Gilles, and he wanted to make and share this map to visualise how the code currently works.
Could be a cool lil' GIS project for someone to update it to consider volcano footprints rather than point locations.
Could be a cool lil' GIS project for someone to update it to consider volcano footprints rather than point locations.
July 11, 2025 at 8:38 AM
I mentioned this to Gilles, and he wanted to make and share this map to visualise how the code currently works.
Could be a cool lil' GIS project for someone to update it to consider volcano footprints rather than point locations.
Could be a cool lil' GIS project for someone to update it to consider volcano footprints rather than point locations.
🚨 How far are volcanologists from volcanoes? 🌋🚨 Check out our new paper here: link.springer.com/article/10.1....
What started as a conversation about whether we at @exeter.ac.uk (in Cornwall, UK) are further from volcanoes than our global colleagues turned into an exploration of a fruitful data set!
What started as a conversation about whether we at @exeter.ac.uk (in Cornwall, UK) are further from volcanoes than our global colleagues turned into an exploration of a fruitful data set!
July 7, 2025 at 10:04 AM
🚨 How far are volcanologists from volcanoes? 🌋🚨 Check out our new paper here: link.springer.com/article/10.1....
What started as a conversation about whether we at @exeter.ac.uk (in Cornwall, UK) are further from volcanoes than our global colleagues turned into an exploration of a fruitful data set!
What started as a conversation about whether we at @exeter.ac.uk (in Cornwall, UK) are further from volcanoes than our global colleagues turned into an exploration of a fruitful data set!
What a week at #IAVCEI2025, and what a bunch of closing ceremony-after party survivors 🕺💃🏼🪩 @iavcei.bsky.social
July 5, 2025 at 9:04 AM
What a week at #IAVCEI2025, and what a bunch of closing ceremony-after party survivors 🕺💃🏼🪩 @iavcei.bsky.social
Touched down in Geneva town for #IAVCEI2025 🌋 🥵
June 29, 2025 at 11:06 AM
Touched down in Geneva town for #IAVCEI2025 🌋 🥵
Maybe there's hope in the future though, should things at X change again. We've also looked into using Facebook and that shows good potential too, so I guess all is not lost 🤓😎. More on that soon, hopefully.
Thanks to USGS for their collaboration 😀 🌋.
Thanks to USGS for their collaboration 😀 🌋.
May 19, 2025 at 10:30 AM
Maybe there's hope in the future though, should things at X change again. We've also looked into using Facebook and that shows good potential too, so I guess all is not lost 🤓😎. More on that soon, hopefully.
Thanks to USGS for their collaboration 😀 🌋.
Thanks to USGS for their collaboration 😀 🌋.
We also did a bunch more other analyses. I used to be super hyped for this work, and thought it could be a really neat way to track responses to volcanic eruptions, but since Twitter changed ownership, that data have become very difficult (💰💰💰) to access and users have declined...
May 19, 2025 at 10:30 AM
We also did a bunch more other analyses. I used to be super hyped for this work, and thought it could be a really neat way to track responses to volcanic eruptions, but since Twitter changed ownership, that data have become very difficult (💰💰💰) to access and users have declined...
Topics of local conversation reveal societal actions, including the sharing of hazard warnings, mitigation actions, & aid announcements. Temporal trends in societal actions from analysed Twitter patterns reflect patterns in volcanic activity, civil protection actions, and socioeconomic pressures.
May 19, 2025 at 10:30 AM
Topics of local conversation reveal societal actions, including the sharing of hazard warnings, mitigation actions, & aid announcements. Temporal trends in societal actions from analysed Twitter patterns reflect patterns in volcanic activity, civil protection actions, and socioeconomic pressures.
We found that more negative emotions, calculated with automated sentiment analysis of the Tweet text, were expressed during the eruption, and especially in response to higher impact events.
May 19, 2025 at 10:30 AM
We found that more negative emotions, calculated with automated sentiment analysis of the Tweet text, were expressed during the eruption, and especially in response to higher impact events.
New paper day: Social sensing a volcanic eruption: application to Kīlauea, 2018.
In a novel approach to monitoring the response to volcanic activity, we analysed Tweets (from before that place went to sh!t) posted during the 2018 LERZ eruption at Kīlauea.
nhess.copernicus.org/articles/25/... ⚒️🧪🌋
In a novel approach to monitoring the response to volcanic activity, we analysed Tweets (from before that place went to sh!t) posted during the 2018 LERZ eruption at Kīlauea.
nhess.copernicus.org/articles/25/... ⚒️🧪🌋
May 19, 2025 at 10:30 AM
New paper day: Social sensing a volcanic eruption: application to Kīlauea, 2018.
In a novel approach to monitoring the response to volcanic activity, we analysed Tweets (from before that place went to sh!t) posted during the 2018 LERZ eruption at Kīlauea.
nhess.copernicus.org/articles/25/... ⚒️🧪🌋
In a novel approach to monitoring the response to volcanic activity, we analysed Tweets (from before that place went to sh!t) posted during the 2018 LERZ eruption at Kīlauea.
nhess.copernicus.org/articles/25/... ⚒️🧪🌋
Just some more eruptive activity:
May 19, 2025 at 9:27 AM
Just some more eruptive activity:
And a video showing the ash falling as the sun was blocked out above us:
May 19, 2025 at 9:27 AM
And a video showing the ash falling as the sun was blocked out above us:
Here’s a timelapse showing the plume dynamics:
May 19, 2025 at 9:27 AM
Here’s a timelapse showing the plume dynamics:
And because the 1 video limit isn’t enough to convey the eruption, I’ll thread along a few more photos and videos 😎
May 19, 2025 at 9:27 AM
And because the 1 video limit isn’t enough to convey the eruption, I’ll thread along a few more photos and videos 😎
Back at the desk after a fab trip to work with the Sakurajima volcano observatory 🌋. We also caught the volcano blast back to life on May 15 and 16, even depositing ash into downtown Kagoshima. Lots of work to do to keep understanding this exciting volcano! ⚒️🧪 #sakurajima #volcano
May 19, 2025 at 9:27 AM
Back at the desk after a fab trip to work with the Sakurajima volcano observatory 🌋. We also caught the volcano blast back to life on May 15 and 16, even depositing ash into downtown Kagoshima. Lots of work to do to keep understanding this exciting volcano! ⚒️🧪 #sakurajima #volcano
Back from a delightful and successful 3rd year @exeter.ac.uk geology fieldclass to #Tenerife exploring a range of #volcanology 🌋 and igneous petrology 🪨 concepts! The students were absolutely top class 👏! Grateful for support from @geotenerife.bsky.social 🤩.
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April 9, 2025 at 3:45 PM
Back from a delightful and successful 3rd year @exeter.ac.uk geology fieldclass to #Tenerife exploring a range of #volcanology 🌋 and igneous petrology 🪨 concepts! The students were absolutely top class 👏! Grateful for support from @geotenerife.bsky.social 🤩.
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Mountain fountain go boom, or no? 🌋
December 31, 2024 at 2:38 PM
Mountain fountain go boom, or no? 🌋
DC by night is pretty special too! #AGU25 #DCbynight
December 9, 2024 at 2:36 AM
DC by night is pretty special too! #AGU25 #DCbynight