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Kristín Jónsdóttir @krjonsdottir.bsky.social · Apr 1

! Dike intrusion started in Sundhnúksgígaröð.

Kristín Jónsdóttir @krjonsdottir.bsky.social · Mar 30

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

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Reposted by Kristín Jónsdóttir

Maya Wei-Haas, PhD @mayaweihaas.bsky.social · Mar 28

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

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Reposted by Kristín Jónsdóttir

Bertrand Delouis @bertranddelouis.bsky.social · Mar 28

First slip map for the Mw 7.8 Myanmar earthquake. Propagation of rupture towards the South. Slipnear method (Géoazur/OCA).

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Kristín Jónsdóttir @krjonsdottir.bsky.social · Mar 28

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

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Kristín Jónsdóttir @krjonsdottir.bsky.social · Mar 19

Yes

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Kristín Jónsdóttir @krjonsdottir.bsky.social · Mar 19

Discussion about the Nature paper on Öræfajökull:
communities.springernature.com/posts/insigh...

Insights into the reawakening of Öræfajökull volcano, Iceland

communities.springernature.com

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Kristín Jónsdóttir @krjonsdottir.bsky.social · Mar 18

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

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Kristín Jónsdóttir @krjonsdottir.bsky.social · Mar 18

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.

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Reposted by Kristín Jónsdóttir

Callan Bentley @callanbentley.bsky.social · Mar 16

Getting Plinian...
Looking at eruptive styles within the Bishop Tuff today.
This outcrop is from the Chalfant Quarry, north of Bishop. ⚒️

Photograph of a student standing in front of a cliff like outcrop of tuff, layered for the first 2 meters, then massive and matrix-supported for the upper 3 meters. Some gravel is in the foreground and the sky is blue.

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Reposted by Kristín Jónsdóttir

Boris Behncke @borisetneo.bsky.social · Mar 16

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.

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Kristín Jónsdóttir @krjonsdottir.bsky.social · Mar 16

I'm no interested in travelling there and many in my group have also cancelled their plan to attend AGU fall meeting this year.

Brandon Bishop @brandontbishop.bsky.social · Mar 16

People seem oddly confident there will be an AGU Fall Meeting this year.

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Kristín Jónsdóttir @krjonsdottir.bsky.social · Mar 12

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

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Kristín Jónsdóttir @krjonsdottir.bsky.social · Mar 10

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

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Kristín Jónsdóttir @krjonsdottir.bsky.social · Mar 10

Oh no... thanks!

Kristín Jónsdóttir @krjonsdottir.bsky.social · Mar 10

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

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Kristín Jónsdóttir @krjonsdottir.bsky.social · Mar 6

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.

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Reposted by Kristín Jónsdóttir

Halldór @halbjorns.bsky.social · Mar 3

Arctic seaice extent may have peaked. This would be an extremely low maximum. Let's wait for NSIDC statement.

Halldór @halbjorns.bsky.social · Mar 3

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)

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Kristín Jónsdóttir @krjonsdottir.bsky.social · Feb 28

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

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Kristín Jónsdóttir @krjonsdottir.bsky.social · Feb 28

Awesome to see that these plots are inspiring! The depth of the cable varies. The weather is affecting our observations like with normal seismometers, e.g. more yellow when windy. Note the data is unfiltered raw data. For our operational 24/7 volcano monitoring at IMO we have more advanced plots.

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Reposted by Kristín Jónsdóttir

Ragnar Heiðar Þrastarson @ragnarheidar.bsky.social · Feb 27

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

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Reposted by Kristín Jónsdóttir

Alex Fitzpatrick @alexjamesfitz.com · Feb 27

If you're worried about aviation safety, these NOAA/NWS cuts are just as alarming as anything happening at FAA.

Daniel Swain @weatherwest.bsky.social · Feb 27

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.

Statement begins:
The mass firing of both new hires and recently promoted senior staff within NOAA, including mission-critical and life-saving roles at the National Weather Service (NWS), is profoundly alarming. It appears that NOAA staff fired today include meteorologists, data and computer scientists responsible for maintaining and upgrading weather predictive models, and technicians responsible for maintaining the nation’s weather instrumentation network (among many others).

Housed within NOAA, the U.S. NWS is a truly world-class meteorological predictive service, perhaps singularly so. Its cost of operation is only ~$3-4/yr per taxpayer—equivalent to a single cup of coffee—and yields a truly remarkable return on investment (at least 10 to 1, and perhaps 100 to 1, depending on methods of estimation). NOAA and the NWS collectively offer tens to hundreds of billions of dollars each year in net economic benefit through a combination of averted losses and efficiencies gained....

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Kristín Jónsdóttir @krjonsdottir.bsky.social · Feb 28

Axios @axios.com · Feb 27

NEW: The Commerce Department has begun laying off potentially hundreds of NOAA employees.

Layoffs hit federal climate, weather agency NOAA

The cuts could affect NOAA's weather forecasts, climate research and other functions.

www.axios.com

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Kristín Jónsdóttir @krjonsdottir.bsky.social · Feb 26

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

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Kristín Jónsdóttir @krjonsdottir.bsky.social · Feb 22

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

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