# The highest energy neutrino: KM3-230213A

**URL:** <https://forum.astro-colibri.science/t/the-highest-energy-neutrino-km3-230213a/335>\
**Category:** General\
**Tags:** neutrino, km3net\
**Created:** [February 12, 2025, 4:28pm UTC](https://forum.astro-colibri.science/t/the-highest-energy-neutrino-km3-230213a/335 "2025-02-12T16:28:15Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![Fabian.Schussler](https://yyz1.discourse-cdn.com/flex007/user_avatar/forum.astro-colibri.science/fabian.schussler/32/25_2.png) [@Fabian.Schussler](https://forum.astro-colibri.science/u/Fabian.Schussler)\
**Post date:** [February 12, 2025, 4:28pm UTC](https://forum.astro-colibri.science/t/the-highest-energy-neutrino-km3-230213a/335/1 "2025-02-12T16:28:15Z")

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The KM3NeT colloboration just announced the detection of the highest energy neutrino event ever detected (~ 200PeV, that is peta-electronvolt!). The event was recorded on 13 February 2023 at 01:16:47 UTC.

The event (and the KM3NeT detector) has been described in an international press conference: [https://www.youtube.com/live/pBBJIeOVLXE?si=dmLgXi8TsgWjxIcu](https://www.youtube.com/live/pBBJIeOVLXE?si=dmLgXi8TsgWjxIcu)

The paper has been published in Nature: [Observation of an ultra-high-energy cosmic neutrino with KM3NeT | Nature](https://www.nature.com/articles/s41586-024-08543-1)

This exciting event has been added to Astro-COLIBRI: [Astro-COLIBRI](https://astro-colibri.com/event:KM3-230213A)

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**Author:** ![marc.serrau2](https://yyz1.discourse-cdn.com/flex007/user_avatar/forum.astro-colibri.science/marc.serrau2/32/122_2.png) [@marc.serrau2](https://forum.astro-colibri.science/u/marc.serrau2)\
**Post date:** [February 12, 2025, 4:52pm UTC](https://forum.astro-colibri.science/t/the-highest-energy-neutrino-km3-230213a/335/2 "2025-02-12T16:52:08Z")

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Yes, it is a very impressive level of energy that has been observed. Will KM3NeT be a new source of targets for AstroColibri, even when cosmological neutrino are generated by interaction of high velocity proton and CMB photon ? So such neutrino cannot give the position of the exact position of the event that was the source of proton.

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**Author:** ![Fabian.Schussler](https://yyz1.discourse-cdn.com/flex007/user_avatar/forum.astro-colibri.science/fabian.schussler/32/25_2.png) [@Fabian.Schussler](https://forum.astro-colibri.science/u/Fabian.Schussler)\
**Post date:** [February 12, 2025, 5:02pm UTC](https://forum.astro-colibri.science/t/the-highest-energy-neutrino-km3-230213a/335/3 "2025-02-12T17:02:56Z")

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Absolutely! As soon as the collaboration releases their recorded events in a timely fashion, we’ll add them to Astro-COLIBRI. Our hope is that this will happen this year 🤞

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<div class="post-metadata">

**Author:** ![Fabian.Schussler](https://yyz1.discourse-cdn.com/flex007/user_avatar/forum.astro-colibri.science/fabian.schussler/32/25_2.png) [@Fabian.Schussler](https://forum.astro-colibri.science/u/Fabian.Schussler)\
**Post date:** [February 17, 2025, 11:33am UTC](https://forum.astro-colibri.science/t/the-highest-energy-neutrino-km3-230213a/335/4 "2025-02-17T11:33:36Z")

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To learn more about this event, its potential origin and how it fits (or rather doesn’t fit) into existing neutrino observations: check out our podcast. The first episode is live now, more coming over the next days.

https://open.spotify.com/embed/show/5qYnRTK7TcVeEdQ214o1h4?si=efRtqeJ5TtSo0JkSoxOJvg&utm_source=oembed