@aleajoa.bsky.social
PhD student at University of Potsdam🎓🌋 》Volcano Seismology🌋▪︎InSAR🛰▪︎Photogrammetry▪︎Video analysis《 Public outreach/Science communication🌋 Photography 📷 Iceland🇮🇸🌋
🌋 Retour en image sur le 1er jour de l'éruption du 13/02/2026 au Piton de la Fournaise
©️OVPF-IPGP
We are hosting the 12th Physics of Volcanoes workshop at the @geowpotsdam.bsky.social @unipotsdam.bsky.social from 18-20 February 2026. We are looking forward to welcome 160 people from Europe and beyond to participate in interesting talks, posters and discussions. www.uni-potsdam.de/en/headlines...
05.02.2026 12:18 — 👍 1 🔁 1 💬 0 📌 0
🌋 Eruption en cours au Piton de la Fournaise
Retrouvez tous les communiqués de l'OVPF-IPGP ici👇
www.ipgp.fr/communiques-...
dont le dernier ici👇
www.ipgp.fr/volcanoweb/r...
Copyright photos : OVPF-IPGP
Just after midnight on 1 January 2026, a new eruption started from #Etna's eastern flank: a fissure opened at ~2100 m elevation, and a lava flow is descending through the desert-like Valle del Bove. Photos taken in the evening of 1 January from Etna's east and southeast flanks
01.01.2026 22:16 — 👍 141 🔁 41 💬 0 📌 3
#Etna 🌋🤩
Alert level raised to yellow due to increased tremor, which could indicate rapid intensification of volcanic activity. Precautionary measures advised for hikers at high elevations.
Photo: Strombolian activity from the NE crater (center) and Voragine (left)
Credits #FrancescoZuccarello
USGS webcam frame showing active lava at night, timestamped 2025-12-23 19:35:10. Two bright lava fountains/vents glow near the top of the scene, feeding multiple incandescent channels that stream downslope and braid into a wider flow field, all set against a dark, smoky red-orange haze.
Respectfully.
24.12.2025 05:37 — 👍 24 🔁 4 💬 2 📌 0
Registration for the 12th Physics of Volcanoes workshop including two GeoX-hosted discussion rounds is now open: docs.google.com/forms/d/e/1F... It will be hosted at the @geowpotsdam.bsky.social of the @unipotsdam.bsky.social from 18 to 20 February 2026. Everyone interested in volcanoes is welcome.
11.12.2025 11:41 — 👍 3 🔁 4 💬 0 📌 0
Webcam image of Kīlauea - A fountain of lava is blasted from the vent at a slight angle, and thus takes the appearance of a large glowing red surf wave whose crest has curled over and is about to break.
Your #DailyVolcamPic for 6 December
Kīlauea at Global Volcanism Program volcano.si.edu/volcano.cfm?...
Comparing seismic data and drone imagery from the 2021 eruption at Geldingadalir in Iceland shows that ground tremor spikes track bursts of bubble-bursting and lava spatter, not the lake’s rising or falling surface.
loom.ly/Hw4xMIE
...the sound of pyroclastic doom..
(Semeru, Indonesia)
youtu.be/T02pJdKARLo?...
#Stromboli update — 13 Nov
A new lava overflow from the North Crater Area is sending a small flow down the upper Sciara del Fuoco. Steady spattering continues from two vents in the north, along with ongoing explosive activity from the Southern Crater Area.
🌋 #INGV
Auf dem Foto ist ein Vulkanausbruch zu sehen. Das Bild stammt von AdobeStock_670737608_Jag_cz
Veranstaltungshinweis: „Faszination Vulkane” – der Forscherabend für Kinder im NANO Potsdam
📅 14.11.2025, 16 Uhr
Weitere Informationen: www.uni-potsdam.de/de/potsdam-t...
#vulkane #geologie #naturwissenschafte #geowissenschaften #kinder #unifindetstadt #potsdam
Foto: AdobeStock_670737608_Jag_cz
Two lava fountains at night feeding a flow
A bright orange lava fountain
A bright orange lava fountain with glowing clouds.
Kīlauea episode 35 has arrived. The double fountain shot is from one of the HVO interns, Christina. All are taken from the public viewing areas.
18.10.2025 08:19 — 👍 113 🔁 32 💬 1 📌 2Episode 34 of the ongoing eruption of #Kīlauea
01.10.2025 14:21 — 👍 43 🔁 9 💬 2 📌 0
NEW PAPER by @aleajoa.bsky.social on lava lake spattering during the Geldingadalir 2021 eruption, #Iceland. agupubs.onlinelibrary.wiley.com/doi/10.1029/...
07.09.2025 09:32 — 👍 4 🔁 2 💬 0 📌 1My first paper is published! 🌋🇮🇸🥳 if you want to learn more about lava lake spattering and seismic tremor during the 2021 Geldingadalir eruption, check out the paper.🌋🇮🇸 #Geldingadalir #iceland #volcano
07.09.2025 10:08 — 👍 8 🔁 0 💬 0 📌 0
NEW PAPER on "#Lava Lake Spattering Drives Seismic Tremor During the #Geldingadalir 2021 Eruption, #Iceland" by Alea Joachim and colleagues published in GGG. /epse
07.09.2025 08:59 — 👍 6 🔁 1 💬 0 📌 1
Save the Date Announcement: We will host the 12th Physics of Volcanoes Workshop from 18 to 20 February 2026 at the University of Potsdam. Registration is free. Travel support is available from the DMG for DMG student member. #volcano /epse
07.09.2025 08:55 — 👍 5 🔁 1 💬 0 📌 0
Yesterday #Etna showed effusive activity from the 3200 m fracture and Strombolian explosions at the South-East Crater. Lava flows from 3100 m and 2980 m vents remain active, the latter branching into 3 arms. Photos by Francesco Ciancitto #INGV.
27.08.2025 13:27 — 👍 9 🔁 4 💬 0 📌 1
#Etna again!!! 🌋🤩
Credits: Emilio Messina Photography
🌋 Episode #30 of the #Kilauea eruption started in the early morning of August the 6th and is characterized by 45-90 m lava fountains as well as lava flows that have covered about 20% of the #Halemaʻumaʻu crater floor
Watch the eruption live here 👇
www.youtube.com/live/BqmpkUd...
For our international friends: We published our assessment of the #Kamchatka #earthquake here: www.gfz.de/en/press/new... -- It was one the strongest earthquakes ever recorded with instruments. The ground near Berlin, Germany, moved up 2 and down 4 millimetres, so a 6-mm movement.
30.07.2025 15:26 — 👍 66 🔁 19 💬 1 📌 1Watch the seismic waves from the magnitude 8.8 earthquake off the coast of Russia sweep beneath seismic stations in North America.
By the time the waves reached North America, they are far too small to be felt by people, but can still be detected by seismic instruments. 🧪
Partial crater wall collapse at Sundhnukar eruption, Iceland at 10.32 local...
Captured from: www.youtube.com/watch?v=8bfc...
#geosciences #volcano #iceland
A map of the southern central Reykjanes Peninsula, Iceland. A dotted bright red line shows the current active eruptive fissure. Darker red lines show guard walls meant to keep lava away from infrastructure. Darker gray shading shows all of the lava that has erupted out of the Sundhnúksgígar fissure in the 9 eruptions since December 2023; the purple shading shows the lava from previous (April 2025) eruption. To the east, shaded in lighter gray, are the lava flows from the three Fagradalsfjall eruptions in 2021-2023.
Veðurstofan has now published a map of the current fissure eruption on the Reykjanes Peninsula.
The active fissure is marked in red, and is about 700 meters long. The little topographic high just northeast of the end is the cone from the August-September 2024 eruption.
vedur.is/um-vi/fretti...
A new volcanic #eruption has just begun moments ago on Iceland's Reykjanes Peninsula (far left side of video). This one so far appears to be well north of the town of Grindavik, along the north end of the dike that has fed all previous eruptions.
16.07.2025 03:59 — 👍 478 🔁 96 💬 14 📌 5
Short, wide lava fountain
Taller, thinner lava fountain
Kīlauea eruption
09.07.2025 15:55 — 👍 30 🔁 7 💬 1 📌 1We have a web tool that will calculate the nearest volcano to your institution, or the nearest institution to a given volcano: gilles.seropian.io/nearest_volc...
We also looked at volcano distance metrics by journal, and by author position in a publication.
🚨 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!
