Alea Joachim

Episode 34 of the ongoing eruption of #Kīlauea

Lava Lake Spattering Drives Seismic Tremor During the Geldingadalir 2021 Eruption, Iceland The 2021 Geldingadalir eruption formed a lava lake in the crater; its lake surface rose slowly and dropped quickly during effusion episodes As the lake level dropped, the size of the vigorously b...

NEW PAPER by @aleajoa.bsky.social on lava lake spattering during the Geldingadalir 2021 eruption, #Iceland. agupubs.onlinelibrary.wiley.com/doi/10.1029/...

My 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

NEW PAPER on "#Lava Lake Spattering Drives Seismic Tremor During the #Geldingadalir 2021 Eruption, #Iceland" by Alea Joachim and colleagues published in GGG. /epse

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

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.

#Etna again!!! 🌋🤩
Credits: Emilio Messina Photography

[V3cam] Kīlauea volcano, Hawaii (south Halemaʻumaʻu crater) YouTube video by USGS

🌋 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.

Watch 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.

Short, wide lava fountain

Taller, thinner lava fountain

Kīlauea eruption

We 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!

USGS-HVO photo by K. Mulliken of A koaʻe kea (white-tailed tropicbird) flies near the lava fountain during episode 27 of the ongoing Kīlauea summit eruption in Halemaʻumaʻu. These birds are often visible in the vicinity of Kaluapele (Kīlauea summit caldera), as they nest in the walls of the caldera. IMAGE SOURDE: Cropped, sharpened and contrast balanced from the original at https://www.usgs.gov/media/images/june-29-2025-kilauea-lava-fountain-and-koae-kea

🧪🌋⚒️Not on summer break - More episodic super high lava Fountaining (>350m), this time captured being viewed up-close by a koaʻe kea bird, on the last day-long #Kilauea #eruption episode 27 (29 June 25), during which roughly 6,200,000 m3 of lava erupted. Cropped-edited #USGS image-see ALT text).

In case you missed it....

"There was an eruption of Mount Lewotobi Laki-laki on Tuesday, June 17, 2025, at 17:35 WITA with an observed ash column height of ± 10,000 m above the peak (± 11,584 m above sea level)," said the Volcano Observation Post Officer, Yohanes Kolli Sorywutun in his statement.

Lava fountain from the 26th eruptive episode at Kilauea on June 20, 2025.

I mean, check it out. Kilauea's got another 1,000 foot lava fountain going on: www.youtube.com/watch?v=Bqmp...

🧪🌋⚒️. Mesmerizing timelapse of #Kilauea #Volcano #eruption episode 23 in its entirety from V3 webcam this past week, courtesy of USGS. Original video and caption at www.usgs.gov/media/videos.... Lava fountains reached 300m,and the ensuing solidified tephra plume reached an amazing 1.5 km!

Fountaining has begun at Kilauea 😍💃

This is episode 21 of the ongoing eruption…

Confirmed!

Potsdamer Tag der Wissenschaften 2025. Science communication should be engaging and fun, here with our TrashCano experiment. Bum!🌋😎 #PTdW #geophysics @geowpotsdam.bsky.social

A screenshot from a live feed of the Kilauea eruption. Tall, orange lava fountains rise to the rim of the summit caldera, with lava pouring down into the floor of the caldera.

Episode 20 of Kilauea's eruption has just begun! 😍
Live: www.youtube.com/watch?v=oG5z...

Kilauea is spoiling us now 🤩

Stunning view of episode 18 of the ongoing eruption.

Just wonderful 😍

Photo of the Day VolcanoDiscovery: Photo of the Day

Photo of the Day: Lava spattering from a vent feeding a lava lake.

Kilauea still looking gorgeous! Episode 17 of the ongoing eruption continues, but no massive lava fountains yet 🌋

📍 Hawaii

From EMSC

🔔#Earthquake (#jarðskjálfti) M5.1 occurred 23 km S of #Keflavík (#Iceland) 7 min ago (local time 16:54:54). More info at:
📱https://m.emsc.eu/#app
🌐https://m.emsc.eu/?id=1789773
🖥https://www.emsc-csem.org/Earthquake_information/earthquake.php?id=1789773

On the day that the volcanic activity North of Grindavik started again there was a triplet of earthquakes about 30 minutes ago near the tip of the Reykjanes Peninsula - largest of these was magnitude 5.3, with about 2 minutes between the events. https://earthquake.usgs.gov/earthquakes/eventpage/us7000ppa0/executive Signals on station II.BORG (Borgarfjordur, Asbjarnarstadir, Iceland - love that name!)

On the day that the volcanic activity North of Grindavik started again there was a triplet of earthquakes about 30 minutes ago near the tip of the Reykjanes Peninsula - largest of these was magnitude 5.3, with about 2 minutes between the events. earthquake.usgs.gov/earthquakes/...