Jelle Assink

Geophysicist at the Royal Netherlands Meteorological Institute (@KNMI) 🎶🎷

[Jelle Assink @jdassink]

The 8 March 2026 #fireball was seen across a wide area and produced sound waves detected by seismic and #infrasound stations, including those from @KNMI and @CTBTO. Two arrivals at De Bilt are due to direct and indirect paths (reflecting from ~110 km) through the atmosphere

[Jelle Assink @jdassink]

@DrRobFloyd @MarioZampolli @phivolcs_dost In a recent study, we could rely on AS80, in addition to IMS seismic and infrasound arrays, to characterize the January 2020 eruption: https://t.co/MrhTC0cKUr

[Science Magazine @ScienceMagazine]

In 2023, a massive rockslide in East Greenland, driven by glacial melt, triggered a towering tsunami and a rare global seismic signal that resonated for nine days, according to a new Science study.

The findings provide insights into how #ClimateChange-induced events like glacial thinning can lead to significant geophysical phenomena with impacts extending throughout the Earth system. https://t.co/pXOkE195Fx

[Maya Wei-Haas, Ph.D. @WeiPoints]

Watch as a mysterious seismic wave sweeps around the world, buzzing seismometers from Greenland to Antarctica in less than an hour!

The signal appeared in Sept 2023, sending scientists on an epic hunt for their cause (🎥 via @seismo_steve, @K_Svennevig, and Alexis Marbeouf)

[KNMI @KNMI]

De stratosferische poolwervel kan worden gemeten met onhoorbaar, laagfrequent geluid, blijkt uit recent onderzoek. De poolwervel is een sterke wervelwind op enkele tientallen kilometers hoogte boven het noordpoolgebied en beïnvloedt ons weer aan de grond. https://t.co/DJrKa5l52A

[Jelle Assink @jdassink]

@SeismoLalit I am using an array processing method that is available via https://t.co/8P6T1DYiGP. Relevant literature is cited on the GitHub page.

[Jelle Assink @jdassink]

Low-frequency inaudible sound (#infrasound) observed from Asteroid #2024BX1 (Sar2736) across Europe - up to 1615 km distance at @CTBTO infrasound station IS43. Nearest observation (@CTBTO IS26 at 412 km) clearly shows a moving source. @KNMI

[IMO Meteor Org. @IMOmeteors]

For the 8th time in human history, human observed an asteroid in space before it entered the atmopshere! 2024 BX1 displayed a wonderful meteoric show above Germany, less than 3 hours after it was discovered! And meteorites hunt is on progress...
https://t.co/CVIBqT150a

[Jelle Assink @jdassink]

@CTBTO @KNMI Observations of 2023 CX1 (13 Feb 2023): https://t.co/mue5Pa70ls

[Jelle Assink @jdassink]

#Infrasound observations of #Asteroid #Sar2667 @KNMI, The Netherlands (~450 km) and on @CTBTO station IS26 (~1000 km) in SE Bavaria, Germany.

[Jelle Assink @jdassink]

@emigenix @sarneczky @CTBTO @KNMI After entering into the atmosphere the asteroid became a fireball that generated infrasound. There is quite some scientific literature on meteor infrasound 👍

[Jelle Assink @jdassink]

@CTBTO @KNMI Observations at the Plostina infrasound station (IPLOR) in Romania are provided by the National Institute for Earth Physics (NIEP).

Data from Piszkés-tető infrasound array (PSZI) are provided by the Kövesligethy Radó Seismological Observatory and made available by @GFZ_Potsdam

[Seismica @WeAreSeismica]

Koymans et al. extract minor temporal variations in the electrical network frequency (ENF) near 50/60Hz from geophysical data and apply them as as a quality metric to resolve instrumental timing and orientation anomalies.

read more: https://t.co/IdB9hYK0Rm

[Jelle Assink @jdassink]

@rtvutrecht Dit filmpje laat de geluidsgolven zien/horen die bij het
@KNMI in De Bilt (afstand ~3.5 km) zijn gemeten. In het filmpje is het geluid vijf keer versneld om de lage frequenties beter hoorbaar te maken. Het sterkste signaal komt rond 22:52:29 aan, ~11 seconden na de inslag.

[News from Science @NewsfromScience]

Wandering albatrosses may use the inaudible “voice of the sea” to find the best flight paths. https://t.co/qJhb4U5wtG

[Jelle Assink @jdassink]

@Selasphorus1 @SamCPatrick @pnas @HFSP @tash_gillies @luciamartinaml @MabLabUF @tommyturtleclay @rocio_joo @jeff_zeyl @MarioZampolli In the PNAS study it is suggested that "Microbarom source regions are louder in areas with colliding waves and may be stronger in stormy areas, with the intensity of this decreasing inversely with distance. Consequently, microbaroms could provide a gradient field" (introduction).

[Samantha Patrick @SamCPatrick]

It took 6yrs but out today @PNAS 1st evidence infrasound is a reliable cue for movment decisions https://t.co/r6qTdb9PwK Read our persepctive on how & why here https://t.co/tGjxgturt3 & how infrasound might be heared here https://t.co/YvcQqpOQvM. Huge thanks to @HFSP for funding

[Tash Gillies @tash_gillies]

Excited to see our new paper, led by myself and @luciamartinaml, published in @PNASNews! We look at movement trajectories of wandering #albatross and find they orient towards to v low frequency 'infrasound' 1/n

[Jelle Assink @jdassink]

@FelixMSchneider @seismotom It’s in Oxford, UK. Reports say 19:20 BST, so 18:20 UTC.

Quite likely it was picked up on nearby seismometers, indeed.

[Jelle Assink @jdassink]

@seismotom Didn’t see anything yet in NL around the time I would expect arrival. Also not on IMS station IS26 in Bavaria

[KNMI @KNMI]

Sparkles zijn kleine bliksemontladingen op grote hoogte. Met LOFAR radiotelescoop kunnen we deze ontladingen zeer gedetailleerd en precies meten. Dit helpt onweersbuien beter te begrijpen. Hoe meer we weten hoe nauwkeuriger we hiervoor kunnen waarschuwen https://t.co/QcrmXKJRDp