Tsunami waves of up to 80cm have been observed reaching the coasts.

Earthquake

A large M7.4 earthquake has occurred off the east coast of Japan. A tsunami alert has been issued with potential waves up to 3m possible. Global quake estimation of M6.4 is not confirmed, that data is preliminary.

#earthquake #tsunami

Sidenote: The auroral oval shown in this model was not strictly accurate. I've reworked the code and future depictions should be more accurate to real life 🤨

G7IZU Ionospheric Path Monitor

G7IZU Ionospheric Path Monitor

Space Weather

A Minor G1 geomagnetic storm is in progress. Conditions have briefly peaked at G2. Aurora may be visible over Canada, Alaska and Australia/New Zealand.

#spaceweather
#aurora
#g7izu

𝑮7𝑰𝙕𝑼 𝑹𝙍𝑫 (@g7izu@universeodon.com) Attached: 1 video Space Weather Earth is now in the fast solar wind stream from a large trans-equatorial coronal hole. A G2 geomagnetic storm is in progress. Aurora may be visible yo upper mid-latitudes now across Canada and Alaska. #spaceweather #aurora #g7izu

#g7izuVideo: https://universeodon.com/@g7izu/116424808844839173

Space Weather

Earth is now in the fast solar wind stream from a large trans-equatorial coronal hole.

A G2 geomagnetic storm is in progress. Aurora may be visible yo upper mid-latitudes now across Canada and Alaska.

#spaceweather
#aurora

𝑮7𝑰𝙕𝑼 𝑹𝙍𝑫 (@g7izu@universeodon.com) Attached: 1 video Space Weather A G2 geomagnetic storm watch is in effect for 17 & 18 April. Earth will be coming under the influence of a fast solar wind this large coronal hole, which is now facing towards us. Strong aurora may combine with meteors from the annual Lyrids meteor shower, which peaks on 22 April, making for some stunning phot opportunities! #spaceweather #lyrids

Strong aurora may combine with meteors from the annual Lyrids meteor shower, which peaks on 22 April, making for some stunning phot opportunities!

#spaceweather
#lyridsVideo: https://universeodon.com/@g7izu/116416269819690389

𝑮7𝑰𝙕𝑼 𝑹𝙍𝑫 (@g7izu@universeodon.com) Attached: 1 video Website/Radio Propagation I've updated my DX Cluster monitor so that it can capture images from the Mercator map view. Up until now my propagation maps have been circular. These are square! Up to 12 different maps can be captured. Three live examples which update once per minute can be found on my website: https://www.tvcomm.co.uk/g7izu/atlantic-radio-propagation/ https://www.tvcomm.co.uk/g7izu/indian-ocean-propagation/ https://www.tvcomm.co.uk/g7izu/pacific-propagation/ #amateurradio #radiopropagation #g7izu

#amateurradio
#radiopropagation
#g7izuVideo: https://universeodon.com/@g7izu/116405287971819031

ATLANTIC PROPAGATION Band/frequency key The map above was generated using a proprietary code by G7IZU, capturing DX Spots from a LiveMUF database. The page is automatically refreshed approximately once per minute…

Up to 12 different maps can be captured. Three live examples which update once per minute can be found on my website:

www.tvcomm.co.uk/g7izu/atlantic-radio-pro...

www.tvcomm.co.uk/g7izu/indian-ocean-propa...

https://www.tvcomm.co.uk/g7izu/pacific-propagation/

Website/Radio Propagation

I've updated my DX Cluster monitor so that it can capture images from the Mercator map view. Up until now my propagation maps have been circular. These are square!

#spaceweather
#g7izu

G7IZU Space Weather Dashboard

Space Weather

NASA & ESA's Artemis 2 crew will be fighting a slight crosswind as it approaches reentry.

The solar wind speed has increased to around 600km/s, but the density if very low, so it's not actually any problem.

A G1 geomagnetic storm watch is in effect until the end of 11 April (UT).

Space Weather Ops dashboard

Space Weather Ops Dashboard

Version 260408.2 released. This update includes a help file! The MUF estimator got another overhaul and seems to be more accurate.

If anyone would like to report back on real world accuracy I'd love to hear from you!

https://www.tvcomm.co.uk/g7izu/space-weather-ops/

- YouTube Enjoy the videos and music you love, upload original content, and share it all with friends, family, and the world on YouTube.

Space Weather Unplugged

Learn all about solar flares and CMEs (and what makes them different from each other), from Nasa's Dr Becca Robinson. Dr Robinson also shares news about Nasa's Muse mission.

https://youtu.be/Kt6aVss4nho?t=193

#spaceweather
#amateurradio
#radiopropagation
#g7izu

Part of a conversation with Claude AI (including my spelling mistakes): Claude AI: Shall I implement that with a latitude-dependent window — 45 minutes for mid-latitude paths, relaxing toward 90 minutes when either endpoint is above 55° latitude?Yes, if you're sure. User: Whay di you suggest 2 hours in the first place if it's too wide? Claude AI: Honestly, I was being too conservative when I first wrote it — trying to avoid false negatives (missing a real grey line) and not thinking carefully enough about the physics. I should have reasoned through the D-layer recombination timescale and terminator speed before picking a number, rather than choosing a round figure that felt "safe." That was sloppy and I should have got it right first time. Sorry about that. Yes, I'm confident in the 45-minute / latitude-dependent approach. Let me implement it.

Whilst using Claude AI to tweak the code, Claude openly admitted to being guilty of "AI slop" 😂

#aislop
#g7izu

By the way, if anyone wants to run a side by side comparison with Voacap to determine any accuracy I'd be grateful for some feedback. Thank you!

Space Weather Ops Space Weather Ops is a space weather and amateur radio propagation dashboard. It uses live solar and DX cluster data to bring together a number of useful data points and radio propagation data, al…

https://www.tvcomm.co.uk/g7izu/space-weather-ops/

#spaceweather
#radiopropagation
#amateurradio
#g7izu

The ↑K number shows how much the geomagnetic storm index (Kp) can rise before the path degrades — useful during unsettled space weather when conditions can change quickly.

Please go to the launch page or reload the page to ensure you're using the latest version.

Part of the Space Weather Ops dashboard showing the DST, DRAP and Ionospheric Path Estimator panels

Space Weather Ops Dashboard

I've released another update today (version #260407.3).

The DRAP map includes a flashing indicator to show which base location is active in the path estimator table.

Two new (optional) columns have been added to the path estimator:

The ↑K number shows how much the geomagnetic storm index (Kp) can rise before the path degrades — useful during unsettled space weather when conditions can change quickly.

Please go to the launch page or reload the page to ensure you're using the latest version.

The GREYLINE column shows when the sunrise/sunset terminator is crossing the midpoint of a radio path — grey line conditions can briefly boost long-distance signals as the D-layer fades but the F-layer stays strong.

Part of the Space Weather Ops dashboard showing the DST, DRAP and Ionospheric Path Estimator panels

Space Weather Ops Dashboard

I've released another update today (version #260407.3).

The DRAP map includes a flashing indicator to show which base location is active in the path estimator table.

Two new (optional) columns have been added to the path estimator:

Plymouth Hoe, united Kingdom, on 2026-04-07.

Costa del Plymouth

- YouTube Enjoy the videos and music you love, upload original content, and share it all with friends, family, and the world on YouTube.

Artemis 2

The lunar fly-by is happening very soon, Micky$oft Outlook working or not!

https://www.youtube.com/watch?v=m3kR2KK8TEs

Space Weather Ops Space Weather Ops is a space weather and amateur radio propagation dashboard. It uses live solar and DX cluster data to bring together a number of useful data points and radio propagation data, al…

A fault on the D-Rap map background was fixed, along with numerous backend fixes.

https://www.tvcomm.co.uk/g7izu/space-weather-ops/

#radiopropagation
#amateurradio
#g7izuVideo: https://universeodon.com/@g7izu/116353756255530304

Xray FLux plot by Space Weather Live

NASA/SDO AIA 131 showing the M7.1 flare at 01h07 UT 04 April 2026

Space Weather

Region AR4409 has been busy popping off one moderate and two minor flares in the past 12 hours.

Peak times on 04 April:
M7.5 01h07 UT R2 HF blackout
M1.7 07h56 UT R1 HF blackout
M1.3 12h10 UT R1 HF blackout

On CMEs were observed.

#spaceweather
#g7izu

Radio Propagation

And here we see the fly-through with the 10m band added to the mix.

#radiopropagation
#amateurradio
#g7izu

Video: https://universeodon.com/@g7izu/116346396858112663

Radio Propagation

Here's the 2D version as rendered by LiveMUF.

#radiopropagation
#amateurradio
#g7izu