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Reposted by Mohammadhossein Mohammadnia

Alex Spahn 🌋🌪️☄️ @spahn711.bsky.social · 06/12/2025

Y'all the latest episode of the #Kilauea #eruption just went CRAZY. It looks like pressure built up enough to explode out the ground around the two existing vents (first few seconds), leading to a massive surge in lava fountaining.🌋🤯 USGS Live stream: www.youtube.com/watch?v=fiyt...

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Mohammadhossein Mohammadnia @mohammadnia.bsky.social · 04/11/2025

Our paper on Taftan Volcano went global! 📺📰 Couldn’t ask for a better academic & science farewell. 👋🌋! Doi: doi.org/10.1029/2025...

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Mohammadhossein Mohammadnia @mohammadnia.bsky.social · 29/10/2025

💡✅ Hence, we propose two internal mechanisms: 1️⃣ Hydrothermal alteration → lower permeability → trapped gas → pressure buildup → uplift → degassing 2️⃣ Small deep magma input → volatile release → shallow pore-pressure increase. ⛰️Both imply Taftan is more active than previously thought

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Mohammadhossein Mohammadnia @mohammadnia.bsky.social · 29/10/2025

🤔 What caused it? We tested whether the unrest was triggered by external factors or by internal processes within the volcano. 🌧️☄️ Rainfall and seismic data showed no correlation — no significant rain or nearby M≥5 earthquakes during the event So, we suggested that the uplift was trigger-less.

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Mohammadhossein Mohammadnia @mohammadnia.bsky.social · 29/10/2025

📅 Results shows that Uplift started mid-July 2023 (±4 days) and ended mid-May 2024 (±9 days). East flank deformation began later but ceased earlier; summit uplift lasted about 10 months and coincided with several gas-emission events. 🌋

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Mohammadhossein Mohammadnia @mohammadnia.bsky.social · 29/10/2025

🕒 To determine the precise timing of the unrest, including its start and end times, we utilized a hyperbolic tangent model applied to a refined set of time series pixels from the summit and both flanks. The findings indicate a gradual onset, acceleration, and recovery in deformation behaviour.

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Mohammadhossein Mohammadnia @mohammadnia.bsky.social · 29/10/2025

Introduce 🌫️ Common-Mode Filtering (CMF) to mitigate spatially correlated atmospheric signals by averaging time series of non-deformed pixels and subtracting them from the target point. Results show an improvement in time series accuracy of up to 50%, aiding in the precise analysis of unrest timing.

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Mohammadhossein Mohammadnia @mohammadnia.bsky.social · 29/10/2025

📡Sentinel-1 InSAR reveals ~9 cm of vertical uplift centered on the active fumarole fields. Modeling with a Mogi source indicates a shallow pressure source at 0.5–0.6 km depth, right beneath the summit

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Mohammadhossein Mohammadnia @mohammadnia.bsky.social · 29/10/2025

🗺️ This Fig. shows location of Taftan in the Makran subduction arc. Taftan is the only one with persistent fumarolic activity.

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Mohammadhossein Mohammadnia @mohammadnia.bsky.social · 29/10/2025

🚨 New paper Alert! 🌋🛰️ We report the first signs of unrest at #Taftan Volcano (Makran Arc). Using InSAR and Common-Mode Filtering method, we detected a spontaneous 10-month summit uplift—without any external trigger—suggesting possible internal magmatic processes. DOI: doi.org/10.1029/2025...

doi.org

Spontaneous Transient Summit Uplift at Taftan Volcano (Makran Subduction Arc) Imaged Using an InSAR Common‐Mode Filtering Method

Evidence for a 10-month Taftan summit uplift episode due to a 490–630 m depth pressure source ending with increase in gas emissions Improved uplift characterization applying a novel satellite int...

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Reposted by Mohammadhossein Mohammadnia

Pablo J. González @pablojglez.bsky.social · 16/10/2025

Our recent GRL paper (agupubs.onlinelibrary.wiley.com/doi/10.1029/...) was covered by science media outlet livescience www.livescience.com/planet-earth...

livescience.com

An Iranian volcano appears to have woken up — 700,000 years after its last eruption

Taftan volcano near the border of Pakistan has shown signs of unrest in recent years.

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Reposted by Mohammadhossein Mohammadnia

João C. Duarte @joaocduarte.bsky.social · 15/06/2025

Olympus Mons, the biggest volcano in the Solar System Olympus Mons is a shield volcano located on Mars. With of over 21 kilometres high and a base of 600 kilometres, it is the biggest volcano in the Solar System.

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Reposted by Mohammadhossein Mohammadnia

ROTTnROCK @rottnrock.bsky.social · 27/05/2025

The first day also included a talk from special guest @pablojglez.bsky.social from @csic.es. Pablo spoke about the activity, past and present, of Teide volcano in Tenerife 🌋🇪🇸

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Reposted by Mohammadhossein Mohammadnia

Pablo J. González @pablojglez.bsky.social · 06/03/2025

Early today our PhD researcher @michelleymw.bsky.social passed her viva with distintions!!! She worked very hard and we are proud of her journey towards scientific independence. All the best for your new goals 🌋🥇🛰️🌏🌍🌎🛰️

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Mohammadhossein Mohammadnia @mohammadnia.bsky.social · 28/02/2025

The left side of this diapir has been altered by an active salt mine, reshaping its natural form. Let’s protect these geological wonders for future generations!

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Mohammadhossein Mohammadnia @mohammadnia.bsky.social · 28/02/2025

Open to collaborating on salt structure research—monitoring, modeling, and field trips (in Iran). Let’s explore together! 🌍

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Mohammadhossein Mohammadnia @mohammadnia.bsky.social · 28/02/2025

Unveiling nature's masterpiece!😍 This small salt diapir in central Iran, its shape mimicking a brain🧠, is Earth’s own neural network rising from the sands🌍. Its activity was revealed for the first time using InSAR 2019🛰️. Learn more! 👉 doi.org/10.1016/j.te... #Geology #InSAR #Iran #diapir

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Mohammadhossein Mohammadnia @mohammadnia.bsky.social · 28/02/2025

Profiles of displacement rate in the vertical directions (red color) versus topography. The red curves and left y-axis correspond to the vertical displacement rate, and the black curves and the right y-axes correspond to altitude.

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Mohammadhossein Mohammadnia @mohammadnia.bsky.social · 28/02/2025

This incredible salt structure, with its fascinating shape, is active—can you imagine? Yes, it is! Located in central Iran, it’s part of some of the most unique and amazing salt diapirs in the world. In 2021, we were the first to reveal its activation using InSAR Salt diapirs never fail to amaze me!

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Reposted by Mohammadhossein Mohammadnia

Landsat 🛰️ @landsat.bsky.social · 11/02/2025

🍊 Fresh Imagery (Feb 10, 2025) Emi Koussi in Chad was observed today by Landsat 8. It's the largest volcano in the Sahara. earthexplorer.usgs.gov/scene/metada...

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Mohammadhossein Mohammadnia @mohammadnia.bsky.social · 07/02/2025

💠(5) We validated our offset tracking results with hashtag#GNSS data inside the caldera, demonstrating how these methods complement each other in monitoring large-scale volcanic deformation.

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Mohammadhossein Mohammadnia @mohammadnia.bsky.social · 07/02/2025

💠(4) By comparing ascending and descending satellite tracks just one day apart, we quantified the underground magma migration rate.

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Mohammadhossein Mohammadnia @mohammadnia.bsky.social · 07/02/2025

💠(3) Our focus extends to the volcano’s flank, where magma flowed for nearly two months through a sub-horizontal dike, revealing how the magma reservoir supplied this dike to sustain ongoing lava flows.

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Mohammadhossein Mohammadnia @mohammadnia.bsky.social · 07/02/2025

💡 Key highlights: 💠(1) We employed hashtag#InSAR, optical flow, and pixel offset tracking to unveil how surface deformation traces magma dynamics. 💠(2) We captured the full eruption cycle—pre-, co-, and post-eruption—by processing consecutive hashtag#Sentinel-1 SAR imagery.

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Mohammadhossein Mohammadnia @mohammadnia.bsky.social · 07/02/2025

🌋 Paper Alert! 🛰️ Excited to share our new paper on the 2018 Sierra Negra #volcano eruption! We used #InSAR, #optical-flow, & #pixel-offset-tracking to understand how surface deformation reveals the volcano’s magma dynamics. Check out the highlights below! 🔗Link: doi.org/10.1093/gji/...

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