Kristín Jónsdóttir
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krjonsdottir.bsky.social
Kristín Jónsdóttir
@krjonsdottir.bsky.social
Seismologist -Volcano/Earthquake/Natural hazard monitoring at the Icelandic Meteorological Office -W-African dance & music -Outdoors -Earth -Space (she/her)-New drummer
! Dike intrusion started in Sundhnúksgígaröð.
April 1, 2025 at 7:07 AM
The lightning detector in our garden in Reykjavík (Kópó) detected an impressive range of lightings today, with closest lightning only about 60 km away and the farthest over 9000 km away! @blitzortung.bsky.social
March 30, 2025 at 11:11 PM
Reposted by Kristín Jónsdóttir
The M7.7 quake ruptured roughly 200 kilometers of Myanmar's Sagaing Fault. According to @judithgeology.bsky.social and @kyle-bradley.bsky.social, there's likely up to 5 meters of slip along the fault. This is a big one near some dense populations. More in their summary below:
Catastrophic M7.7 earthquake caused by rupture of Sagaing Fault in Myanmar
Limited reporting thus far from Myanmar, but this is a big one
earthquakeinsights.substack.com
March 28, 2025 at 6:00 PM
Reposted by Kristín Jónsdóttir
First slip map for the Mw 7.8 Myanmar earthquake. Propagation of rupture towards the South. Slipnear method (Géoazur/OCA).
March 28, 2025 at 8:17 AM
Latest news from IMO. Svartsengi still inflating. Eruption likely in the coming days...
Eruption at the Sundhnúkur crater row remains likely | News | Icelandic Meteorological office
en.vedur.is
March 28, 2025 at 8:23 AM
Discussion about the Nature paper on Öræfajökull:
communities.springernature.com/posts/insigh...
Insights into the reawakening of Öræfajökull volcano, Iceland
communities.springernature.com
March 19, 2025 at 8:25 AM
Latest update from IMO about Svartsengi:
Magma continues to accumulate, and its volume beneath Svartsengi has never been greater since the eruption sequence began in December 2023. The most likely scenario is an eruption in the area between Sundhnúkur and Stóra-Skógfell
en.vedur.is/about-imo/ne...
No sign of subsidence around Svartsengi | News | Icelandic Meteorological office
en.vedur.is
March 18, 2025 at 11:13 PM
www.nature.com/articles/s43...
New paper out!
Led by colleagues at Uppsala University.
Structure of Öræfajökull volcano revealed by data collected during intrusive activity 2016-2018.
March 18, 2025 at 11:09 PM
Reposted by Kristín Jónsdóttir
Getting Plinian...
Looking at eruptive styles within the Bishop Tuff today.
This outcrop is from the Chalfant Quarry, north of Bishop. ⚒️
March 16, 2025 at 5:17 AM
Reposted by Kristín Jónsdóttir
On the late evening of 15 March 2025, Strombolian activity started at the Southeast Crater on #Etna. Here are a few photos taken around midnight from the area of Piano Vetore, high on the southwest flank of the volcano.
March 16, 2025 at 12:44 AM
I'm no interested in travelling there and many in my group have also cancelled their plan to attend AGU fall meeting this year.
People seem oddly confident there will be an AGU Fall Meeting this year.
March 16, 2025 at 8:21 AM
We are still waiting for an eruption. Below the latest news from the Icelandic Met Office.
Expectation of a New Eruption in the Sundhnúkur Crater Row is Ongoing | News | Icelandic Meteorological office
en.vedur.is
March 12, 2025 at 8:52 PM
Apparantly not much news about the Jan Mayen Earthquake tonight.

By mistake I posted old news before about Jan Mayen Earthquake which I have now deleted. Thanks @gongudottir.bsky.social
March 10, 2025 at 8:58 AM
M6.6 Jan Mayen #Earthquake as recorded in Iceland.
Note we have an experimental setup in Eldey island sw of Reykjanes peninsula which recorded the earthquake clearly.
#vedurstofan
March 10, 2025 at 8:27 AM
Development of magma accumulation & estimated total volume of magma beneath Svartsengi. The zero point is based on the state before land uplift began in late October 2023. The total volume of magma beneath Svartsengi is now greater than what had accumulated before last eruption on Nov20, 2024.
March 6, 2025 at 11:23 PM
Reposted by Kristín Jónsdóttir
Arctic seaice extent may have peaked. This would be an extremely low maximum. Let's wait for NSIDC statement.
Mér sýnist að útbreiðsla hafís á Norðurslóðum hafa náð hámarki. Þetta verður þá eitthvert lægsta hámark sem vitað er um síðan mælingar hófust. NSIDC (nsidc.org/sea-ice-today) gefur vonandi út yfirlýsingu fljótlega (þó aðförin að loftslagsrannsóknum vestanhafs geti hugsanlega tafið)
March 3, 2025 at 3:46 PM
Paper out! This is one of the main and last outcomes of the IS-TREMOR project supported by the Iceland Research Fund. Shoutout to Jean for leading this work!
@seismotom.bsky.social
@cocaudron.bsky.social
Dynamics of the 2021 Fagradalsfjall Eruption (Iceland) Revealed by Volcanic Tremor Patterns
Seismic network-based analysis enables to measure spatial, temporal and spectral properties of distinct tremor patterns during the eruption Minute-long tremor bursts associated with pulsating lav...
doi.org
February 28, 2025 at 8:04 PM
Reposted by Kristín Jónsdóttir
Hello Sentinel-2C 👋🛰️

Images from the recently launched @esa.int third #Sentinel2 satellite are now available. Some winter wonderland images from #Iceland acquired yesterday over the Northeastern highlands.

📸 Lake Mývatn
📸 Jöklusá á Fjöllum glacier river
📸 Askja volcanic caldera & lake
February 27, 2025 at 11:45 AM
Reposted by Kristín Jónsdóttir
If you're worried about aviation safety, these NOAA/NWS cuts are just as alarming as anything happening at FAA.
I have written a short statement responding to mass firings today of #NOAA / National Weather Service (#NWS) staff (which were concentrated among recent hires as well as highly experienced staff who had recently been promoted). Please see below screenshot & below for full text.
February 27, 2025 at 11:20 PM
February 28, 2025 at 8:08 AM
IMO's models suggest the volume of magma accumulated beneath Svartsengi has exceeded the amount present before the eruption that began on November 20, 2024.
It is anticipated that an eruption may start in Sundhnúksgígaröð with very short warning. Below latest IMO news:
Increased likelihood of an eruption on the Sundhnúkur crater row | News | Icelandic Meteorological office
en.vedur.is
February 26, 2025 at 11:47 AM
Latest news from Iceland volcano monitoring team IMO
Increased likelihood of an eruption on the Sundhnúkur crater row | News | Icelandic Meteorological office
en.vedur.is
February 22, 2025 at 8:56 PM
Map showing eruptive fissures on the Sundhnúks craterrow since 2023
February 21, 2025 at 12:56 PM
On a short holiday in Lisbon. Beautiful city. Super happy with the 18°C & sun today ♡ I fear I will miss the onset of the next Reykjanes eruption although my colleagues are defininately on top of things back at the Iceland :) MetOffice!!!
February 19, 2025 at 3:58 PM
February 19, 2025 at 3:37 PM