G4Peak 11 April 2001 at 21:00 UTC
Northern Lights on 11 April 2001 (Kp 8.3): Where They Were Visible
Kp reached 8.3. At that level the edge of the auroral oval reaches about 49.8° magnetic latitude, so the aurora could be seen low on the horizon down to roughly 45.3°. Activity stayed at storm level (Kp 5 or more) for 21 hours.
Kp 0–3 Kp 4 Kp 5–6 (G1–G2) Kp 7+ (G3+) Times in UTC; faded bars are forecasts.
Three-hourly Kp from GFZ, one day either side of the storm.
Where the aurora could be seen
8,752 towns on our list had enough activity while it was dark there. Cloud cover is not included.
Only in photos
2,921 more towns could have caught a faint red or green glow low on the horizon with a phone or camera.
- HungaryBudapest, Debrecen, Szeged
- CroatiaZagreb, Split, Rijeka
- ItalyRome, Milan, Naples
- SwitzerlandZürich, Geneva, Basel
- SloveniaLjubljana, Maribor, Celje
- SlovakiaBratislava, Košice, Petržalka
- TürkiyeIstanbul, Ankara, Bursa
- AustriaVienna, Graz, Linz
- SpainBarcelona, Zaragoza, Bilbao City
- JapanSapporo, Asahikawa, Tomakomai
- LiechtensteinSchaan, Triesen, Balzers
- ArgentinaRío Gallegos, Ushuaia, Río Grande
- PortugalBraga, Viana do Castelo, Bragança
- ChilePunta Arenas, Porvenir, Puerto Williams
- AndorraLes Escaldes, Encamp
- GreeceThessaloniki, Komotini
- South AfricaCape Town, Gqeberha
- SerbiaBelgrade
- Falkland IslandsStanley
Whether the aurora was actually seen also depended on the weather. Use this as a guide to where it was possible.