Geomagnetic Activity Map - Hourly Ranges
Note: Empty cells of observatories (indicated in the leftmost column by their IAGA codes) indicate that there was insufficient data to calculate a hourly range.
| IAGA | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| AAA | ||||||||||||||||||||||||
| AAE | 1 | 0 | 1 | 2 | 4 | 3 | 5 | 3 | 3 | 5 | 5 | 2 | 5 | 2 | 5 | 3 | 1 | 1 | 1 | 1 | 1 | 2 | 1 | 1 |
| ABG | 5 | 4 | 11 | 17 | 10 | 4 | 12 | 13 | 7 | 8 | 3 | 6 | 4 | 6 | 3 | 3 | 4 | 5 | 3 | 2 | 2 | 3 | 5 | 2 |
| ABK | 58 | 24 | 3 | 5 | 8 | 10 | 14 | 9 | 4 | 4 | 4 | 4 | 5 | 3 | 5 | 4 | 3 | 4 | 2 | 8 | 23 | 91 | 54 | 39 |
| AIA | 1 | 2 | 3 | 2 | 5 | 2 | 3 | 2 | 1 | 1 | 1 | 2 | 1 | 2 | 1 | 4 | 4 | 5 | 2 | 2 | 2 | 4 | 6 | 2 |
| AMS | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 5 | 1 | 4 | 1 | 1 | 2 | 1 | 1 | 1 | 1 | 1 | 5 | 5 | 5 | 4 |
| API | 3 | 2 | 1 | 1 | 3 | 3 | 2 | 1 | 1 | 1 | 1 | 2 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 2 | 2 | 3 | 2 | 3 |
| AQU | 1 | 1 | 1 | 2 | 1 | 2 | 1 | 3 | 5 | 6 | 5 | 2 | 5 | 2 | 2 | 4 | 1 | 1 | 1 | 2 | 1 | 1 | 1 | 1 |
| ARS | ||||||||||||||||||||||||
| ASC | 1 | 0 | 1 | 0 | 0 | 1 | 1 | 1 | 2 | 2 | 2 | 3 | 1 | 1 | 2 | 1 | 1 | 1 | 3 | 1 | 2 | 2 | 1 | 1 |
| ASP | 6 | 8 | 3 | 4 | 1 | 3 | 2 | 4 | 1 | 0 | 1 | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 2 | 2 | 1 |
| BDV | 2 | 1 | 1 | 1 | 1 | 1 | 2 | 6 | 7 | 6 | 2 | 2 | 6 | 5 | 2 | 3 | 2 | 1 | 1 | 1 | 1 | 2 | 1 | 1 |
| BEL | 2 | 3 | 2 | 2 | 4 | 3 | 3 | 8 | 11 | 8 | 3 | 7 | 12 | 3 | 3 | 4 | 2 | 2 | 2 | 2 | 2 | 3 | 3 | 2 |
| BFE | 7 | 5 | 2 | 2 | 5 | 3 | 2 | 5 | 8 | 9 | 3 | 2 | 8 | 12 | 3 | 4 | 2 | 1 | 3 | 3 | 4 | 5 | 5 | 4 |
| BFO | ||||||||||||||||||||||||
| BLC | 45 | 25 | 16 | 17 | 105 | 145 | 49 | 38 | 18 | 30 | 33 | 53 | 65 | 47 | 14 | 59 | 21 | 22 | 17 | 27 | 29 | 105 | 34 | 24 |
| BMT | 1 | 6 | 5 | 1 | 2 | 7 | 5 | 1 | 1 | 2 | 1 | 1 | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 1 | 1 | 2 | 0 |
| BNG | 2 | 1 | 1 | 1 | 2 | 8 | 4 | 6 | 4 | 4 | 6 | 5 | 3 | 4 | 2 | 2 | 5 | 1 | 1 | 1 | 1 | 1 | 2 | 1 |
| BOU | 4 | 4 | 1 | 0 | 2 | 2 | 2 | 1 | 1 | 1 | 1 | 2 | 3 | 2 | 3 | 8 | 10 | 1 | 4 | 1 | 1 | 1 | 3 | 1 |
| BOX | 8 | 3 | 2 | 2 | 1 | 3 | 2 | 3 | 5 | 7 | 3 | 5 | 4 | 3 | 3 | 1 | 2 | 1 | 1 | 1 | 3 | 6 | 3 | 3 |
| BRW | 17 | 11 | 8 | 18 | 19 | 44 | 59 | 64 | 18 | 34 | 50 | 33 | 21 | 24 | 16 | 15 | 5 | 5 | 11 | 13 | 8 | 17 | 14 | 13 |
| BSL | 3 | 1 | 1 | 1 | 3 | 4 | 3 | 1 | 1 | 1 | 2 | 4 | 5 | 10 | 12 | 4 | 4 | 3 | 5 | 7 | 5 | 5 | 7 | 5 |
| CBB | 67 | 39 | 23 | 10 | 34 | 38 | 15 | 22 | 12 | 18 | 18 | 16 | 33 | 54 | 18 | 53 | 54 | 82 | 120 | 73 | 85 | 138 | 70 | 58 |
| CLF | 2 | 1 | 1 | 1 | 2 | 2 | 1 | 2 | 5 | 5 | 4 | 3 | 3 | 4 | 6 | 6 | 2 | 4 | 2 | 1 | 1 | 1 | 1 | 1 |
| CMO | 10 | 6 | 4 | 6 | 23 | 10 | 60 | 39 | 16 | 10 | 29 | 15 | 13 | 6 | 3 | 5 | 4 | 6 | 12 | 11 | 16 | 17 | 20 | 5 |
| CNB | 3 | 2 | 3 | 7 | 8 | 4 | 8 | 1 | 2 | 1 | 1 | 2 | 1 | 0 | 1 | 1 | 1 | 1 | 1 | 2 | 2 | 4 | 6 | 4 |
| CSY | ||||||||||||||||||||||||
| CTA | 8 | 1 | 5 | 3 | 4 | 6 | 5 | 1 | 1 | 1 | 0 | 1 | 1 | 1 | 0 | 1 | 0 | 0 | 1 | 0 | 2 | 3 | 2 | 2 |
| CZT | 2 | 2 | 1 | 3 | 3 | 4 | 3 | 2 | 4 | 3 | 2 | 2 | 2 | 2 | 1 | 1 | 1 | 1 | 1 | 2 | 6 | 6 | 3 | 4 |
| DLR | 5 | 1 | 1 | 1 | 3 | 3 | 2 | 1 | 1 | 1 | 2 | 3 | 2 | 2 | 10 | 6 | 2 | 1 | 2 | 1 | 3 | 3 | 6 | 5 |
| DOU | 3 | 2 | 2 | 2 | 3 | 3 | 2 | 3 | 6 | 3 | 3 | 3 | 3 | 5 | 5 | 3 | 2 | 3 | 2 | 1 | 2 | 4 | 2 | 4 |
| DRV | 131 | 127 | 66 | 167 | 155 | 56 | 29 | 38 | 10 | 19 | 16 | 21 | 9 | 15 | 18 | 14 | 10 | 18 | 15 | 29 | 21 | 27 | 35 | 44 |
| EBR | 3 | 2 | 1 | 1 | 6 | 4 | 3 | 2 | 4 | 4 | 8 | 5 | 4 | 4 | 2 | 7 | 5 | 5 | 3 | 5 | 6 | 6 | 6 | 3 |
| ESK | 4 | 3 | 1 | 0 | 2 | 3 | 1 | 2 | 1 | 6 | 7 | 4 | 1 | 3 | 8 | 6 | 1 | 2 | 3 | 1 | 1 | 2 | 4 | 1 |
| EUA | ||||||||||||||||||||||||
| EYR | 2 | 3 | 3 | 2 | 3 | 3 | 4 | 3 | 2 | 1 | 2 | 2 | 2 | 2 | 1 | 2 | 2 | 2 | 2 | 2 | 2 | 4 | 5 | 3 |
| FCC | 24 | 12 | 4 | 7 | 129 | 145 | 96 | 35 | 20 | 32 | 13 | 24 | 9 | 12 | 3 | 12 | 5 | 8 | 11 | 12 | 23 | 12 | 17 | 24 |
| FRD | 1 | 1 | 1 | 1 | 2 | 1 | 1 | 1 | 1 | 2 | 2 | 3 | 3 | 3 | 1 | 2 | 2 | 3 | 5 | 4 | 2 | 2 | 5 | 3 |
| FRN | 2 | 2 | 2 | 1 | 1 | 2 | 1 | 1 | 1 | 1 | 0 | 1 | 1 | 3 | 2 | 3 | 5 | 6 | 2 | 6 | 2 | 1 | 3 | 1 |
| FUR | 2 | 1 | 1 | 1 | 1 | 2 | 2 | 5 | 6 | 7 | 3 | 1 | 5 | 6 | 1 | 4 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
| GCK | ||||||||||||||||||||||||
| GDH | 96 | 74 | 12 | 25 | 99 | 147 | 73 | 55 | 58 | 68 | 74 | 51 | 63 | 51 | 37 | 37 | 31 | 15 | 32 | 81 | 80 | 74 | 110 | 52 |
| GNA | 4 | 7 | 5 | 14 | 8 | 9 | 8 | 3 | 8 | 4 | 1 | 2 | 2 | 1 | 1 | 1 | 2 | 2 | 3 | 2 | 4 | 6 | 6 | 5 |
| GUA | 6 | 4 | 7 | 1 | 2 | 6 | 7 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 1 | 1 | 1 | 1 | 1 | 1 | 2 | 2 | 3 | 4 |
| GUI | 1 | 2 | 1 | 1 | 2 | 2 | 2 | 1 | 4 | 4 | 5 | 2 | 2 | 1 | 3 | 7 | 4 | 1 | 1 | 2 | 2 | 2 | 2 | 2 |
| GZH | 9 | 7 | 5 | 1 | 1 | 5 | 7 | 8 | 2 | 2 | 1 | 2 | 1 | 1 | 0 | 1 | 1 | 1 | 0 | 1 | 1 | 2 | 2 | 1 |
| HAD | 2 | 2 | 1 | 1 | 3 | 2 | 1 | 1 | 3 | 5 | 6 | 8 | 2 | 5 | 8 | 6 | 3 | 3 | 2 | 3 | 3 | 4 | 4 | 1 |
| HBK | 4 | 3 | 4 | 4 | 4 | 4 | 4 | 6 | 6 | 4 | 4 | 6 | 4 | 6 | 4 | 4 | 3 | 4 | 3 | 3 | 4 | 3 | 3 | 4 |
| HER | 5 | 4 | 1 | 2 | 8 | 6 | 7 | 5 | 5 | 10 | 3 | 6 | 9 | 3 | 5 | 3 | 2 | 1 | 2 | 2 | 2 | 3 | 6 | 3 |
| HLP | 7 | 3 | 1 | 2 | 4 | 3 | 2 | 6 | 9 | 9 | 2 | 7 | 8 | 4 | 4 | 4 | 2 | 1 | 2 | 3 | 3 | 4 | 2 | 3 |
| HON | 7 | 4 | 1 | 1 | 2 | 2 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 2 | 9 | 5 | 5 | 13 | 9 | 9 | 4 | 6 |
| HRB | 2 | 1 | 1 | 1 | 2 | 2 | 2 | 8 | 8 | 6 | 6 | 6 | 8 | 4 | 2 | 4 | 1 | 2 | 2 | 1 | 1 | 2 | 1 | 1 |
| HRN | 77 | 66 | 15 | 38 | 102 | 92 | 130 | 28 | 32 | 26 | 31 | 18 | 17 | 15 | 15 | 33 | 17 | 14 | 26 | 26 | 20 | 170 | 94 | 61 |
| HUA | 1 | 1 | 0 | 1 | 1 | 2 | 2 | 1 | 1 | 1 | 1 | 3 | 2 | 1 | 6 | 1 | 2 | 3 | 2 | 1 | 1 | 1 | 1 | 1 |
| HYB | ||||||||||||||||||||||||
| IPM | ||||||||||||||||||||||||
| IQA | 30 | 31 | 22 | 20 | 117 | 171 | 81 | 29 | 29 | 36 | 29 | 37 | 33 | 33 | 16 | 21 | 18 | 19 | 38 | 58 | 44 | 81 | 64 | 21 |
| IRT | 3 | 2 | 3 | 6 | 4 | 3 | 2 | 8 | 2 | 2 | 4 | 3 | 1 | 1 | 3 | 1 | 2 | 1 | 1 | 2 | 2 | 1 | 1 | 2 |
| IZN | ||||||||||||||||||||||||
| KAK | 7 | 3 | 7 | 8 | 2 | 2 | 3 | 2 | 2 | 1 | 3 | 4 | 1 | 2 | 1 | 1 | 1 | 1 | 1 | 3 | 2 | 3 | 3 | 9 |
| KDU | 8 | 11 | 7 | 6 | 5 | 3 | 7 | 9 | 8 | 1 | 1 | 2 | 1 | 1 | 1 | 0 | 0 | 1 | 1 | 1 | 1 | 2 | 2 | 4 |
| KMH | ||||||||||||||||||||||||
| KNY | 6 | 1 | 6 | 1 | 4 | 5 | 7 | 2 | 2 | 1 | 1 | 4 | 1 | 2 | 1 | 2 | 1 | 1 | 1 | 2 | 3 | 3 | 3 | 5 |
| KOU | 1 | 1 | 1 | 1 | 3 | 2 | 3 | 1 | 1 | 4 | 7 | 14 | 4 | 5 | 11 | 10 | 4 | 3 | 4 | 2 | 1 | 3 | 3 | 2 |
| LER | 13 | 5 | 2 | 1 | 5 | 5 | 5 | 1 | 1 | 4 | 2 | 3 | 2 | 3 | 3 | 3 | 2 | 2 | 2 | 2 | 4 | 9 | 3 | 4 |
| LRM | 7 | 5 | 10 | 16 | 15 | 6 | 3 | 4 | 11 | 14 | 1 | 3 | 2 | 1 | 4 | 2 | 1 | 1 | 1 | 3 | 1 | 4 | 7 | 7 |
| LVV | 4 | 5 | 7 | 5 | 8 | 7 | 5 | 7 | 10 | 8 | 7 | 11 | 9 | 10 | 6 | 5 | 5 | 4 | 5 | 4 | 6 | 4 | 4 | 4 |
| LYC | ||||||||||||||||||||||||
| LZH | 1 | 8 | 4 | 2 | 4 | 2 | 3 | 3 | 3 | 2 | 1 | 1 | 1 | 2 | 0 | 1 | 1 | 1 | 1 | 1 | 1 | 2 | 2 | 2 |
| MAB | ||||||||||||||||||||||||
| MAW | ||||||||||||||||||||||||
| MBO | 2 | 2 | 1 | 1 | 1 | 2 | 2 | 7 | 8 | 11 | 8 | 3 | 4 | 5 | 5 | 3 | 7 | 3 | 2 | 1 | 2 | 1 | 2 | 1 |
| MCQ | 15 | 9 | 6 | 20 | 16 | 7 | 20 | 18 | 3 | 3 | 6 | 8 | 6 | 4 | 1 | 3 | 2 | 2 | 4 | 5 | 5 | 10 | 7 | 5 |
| MEA | 13 | 8 | 2 | 7 | 6 | 14 | 41 | 17 | 6 | 6 | 5 | 10 | 2 | 1 | 3 | 4 | 3 | 7 | 6 | 4 | 5 | 8 | 15 | 6 |
| MGD | ||||||||||||||||||||||||
| MID | ||||||||||||||||||||||||
| MMB | 5 | 1 | 5 | 1 | 1 | 2 | 1 | 2 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 1 | 0 | 0 | 1 | 1 | 2 | 2 | 5 | 3 |
| NAQ | 40 | 24 | 11 | 12 | 118 | 52 | 77 | 23 | 9 | 6 | 9 | 11 | 12 | 10 | 7 | 18 | 9 | 15 | 22 | 25 | 37 | 26 | 32 | 17 |
| NCK | 2 | 1 | 1 | 1 | 1 | 1 | 2 | 6 | 7 | 5 | 6 | 4 | 8 | 3 | 1 | 3 | 1 | 1 | 1 | 1 | 1 | 2 | 1 | 1 |
| NEW | 2 | 3 | 2 | 1 | 2 | 3 | 5 | 3 | 1 | 1 | 1 | 2 | 2 | 2 | 0 | 2 | 2 | 3 | 4 | 1 | 3 | 2 | 2 | 2 |
| NGK | 2 | 2 | 1 | 1 | 3 | 2 | 3 | 5 | 10 | 8 | 1 | 3 | 7 | 5 | 2 | 3 | 2 | 1 | 2 | 2 | 4 | 6 | 2 | 1 |
| NUR | 13 | 6 | 2 | 1 | 3 | 2 | 4 | 7 | 4 | 3 | 1 | 5 | 4 | 2 | 3 | 2 | 2 | 2 | 2 | 2 | 3 | 11 | 4 | 6 |
| NVS | 4 | 4 | 5 | 7 | 7 | 5 | 4 | 3 | 6 | 6 | 6 | 6 | 6 | 5 | 4 | 3 | 3 | 4 | 4 | 4 | 3 | 5 | 4 | 3 |
| OTT | 5 | 3 | 1 | 1 | 7 | 4 | 5 | 2 | 2 | 3 | 3 | 4 | 4 | 2 | 1 | 4 | 2 | 3 | 6 | 5 | 5 | 4 | 5 | 5 |
| PAF | 6 | 4 | 4 | 2 | 5 | 3 | 2 | 2 | 2 | 3 | 1 | 2 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 7 | 7 | 4 | 2 |
| PAG | ||||||||||||||||||||||||
| PEG | ||||||||||||||||||||||||
| PHU | 6 | 9 | 3 | 3 | 5 | 6 | 9 | 6 | 3 | 3 | 2 | 4 | 2 | 2 | 1 | 1 | 1 | 1 | 1 | 1 | 2 | 3 | 3 | 7 |
| PPT | 3 | 3 | 5 | 6 | 2 | 4 | 4 | 2 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 2 | 6 | 6 | 4 | 13 | 3 | 5 | 5 |
| PST | ||||||||||||||||||||||||
| QSB | 1 | 1 | 2 | 3 | 1 | 4 | 7 | 15 | 7 | 4 | 8 | 7 | 6 | 2 | 1 | 2 | 2 | 1 | 1 | 1 | 1 | 2 | 1 | 1 |
| RES | 44 | 36 | 10 | 19 | 12 | 24 | 17 | 10 | 8 | 18 | 8 | 11 | 18 | 32 | 17 | 33 | 62 | 63 | 61 | 119 | 72 | 105 | 28 | 23 |
| SBA | 32 | 53 | 19 | 17 | 25 | 13 | 15 | 11 | 12 | 8 | 26 | 27 | 14 | 11 | 9 | 10 | 9 | 20 | 19 | 22 | 27 | 23 | 22 | 27 |
| SFS | ||||||||||||||||||||||||
| SHU | ||||||||||||||||||||||||
| SIT | 3 | 3 | 2 | 3 | 4 | 3 | 13 | 5 | 3 | 5 | 5 | 8 | 4 | 1 | 1 | 1 | 1 | 5 | 4 | 4 | 6 | 7 | 3 | 3 |
| SJG | 1 | 1 | 1 | 1 | 1 | 2 | 1 | 1 | 1 | 2 | 3 | 7 | 3 | 3 | 7 | 2 | 3 | 7 | 7 | 4 | 1 | 1 | 2 | 1 |
| SOD | 51 | 14 | 2 | 4 | 5 | 6 | 8 | 4 | 2 | 3 | 3 | 3 | 5 | 3 | 2 | 3 | 2 | 2 | 2 | 5 | 21 | 62 | 42 | 27 |
| SPT | 2 | 0 | 1 | 0 | 1 | 1 | 2 | 2 | 3 | 3 | 6 | 7 | 1 | 2 | 1 | 2 | 5 | 4 | 2 | 1 | 1 | 1 | 2 | 1 |
| STJ | 6 | 4 | 2 | 4 | 17 | 14 | 10 | 6 | 3 | 7 | 7 | 11 | 7 | 9 | 4 | 8 | 6 | 7 | 7 | 5 | 7 | 8 | 9 | 5 |
| SUA | 1 | 1 | 2 | 1 | 2 | 4 | 4 | 6 | 13 | 6 | 3 | 8 | 8 | 3 | 2 | 3 | 3 | 1 | 1 | 1 | 2 | 2 | 2 | 1 |
| TAM | 1 | 1 | 1 | 1 | 1 | 2 | 2 | 2 | 4 | 5 | 5 | 2 | 4 | 1 | 4 | 6 | 1 | 3 | 1 | 1 | 1 | 1 | 1 | 1 |
| TAN | 1 | 0 | 1 | 2 | 3 | 3 | 4 | 6 | 2 | 5 | 0 | 2 | 3 | 1 | 1 | 1 | 0 | 0 | 0 | 1 | 0 | 1 | 1 | 0 |
| TDC | ||||||||||||||||||||||||
| THL | 14 | 21 | 11 | 35 | 25 | 24 | 16 | 13 | 16 | 32 | 17 | 51 | 37 | 70 | 47 | 98 | 65 | 37 | 31 | 44 | 26 | 24 | 21 | 21 |
| THY | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 6 | 7 | 6 | 6 | 5 | 8 | 4 | 1 | 3 | 1 | 1 | 1 | 1 | 1 | 2 | 1 | 1 |
| TRW | ||||||||||||||||||||||||
| TSU | 1 | 1 | 0 | 0 | 4 | 3 | 1 | 2 | 3 | 7 | 2 | 4 | 1 | 2 | 7 | 3 | 2 | 1 | 1 | 1 | 1 | 1 | 1 | 2 |
| TUC | 2 | 2 | 1 | 0 | 1 | 1 | 1 | 0 | 1 | 0 | 0 | 1 | 2 | 4 | 1 | 10 | 7 | 1 | 1 | 1 | 1 | 1 | 2 | 3 |
| UPS | 15 | 5 | 2 | 1 | 3 | 3 | 2 | 4 | 6 | 4 | 1 | 1 | 7 | 4 | 2 | 4 | 1 | 2 | 1 | 1 | 3 | 9 | 2 | 5 |
| VAL | 3 | 4 | 1 | 3 | 7 | 3 | 3 | 3 | 3 | 6 | 13 | 12 | 4 | 7 | 13 | 7 | 6 | 4 | 3 | 3 | 5 | 10 | 11 | 3 |
| VIC | 4 | 3 | 2 | 2 | 2 | 2 | 6 | 2 | 2 | 2 | 1 | 3 | 3 | 1 | 1 | 3 | 3 | 8 | 3 | 3 | 4 | 5 | 4 | 6 |
| VSS | 1 | 1 | 0 | 1 | 3 | 3 | 1 | 1 | 1 | 4 | 1 | 9 | 10 | 10 | 9 | 8 | 3 | 5 | 6 | 2 | 2 | 2 | 3 | 2 |
| WNG | 6 | 3 | 1 | 1 | 4 | 2 | 1 | 3 | 9 | 7 | 2 | 1 | 6 | 10 | 2 | 4 | 2 | 1 | 2 | 2 | 3 | 5 | 7 | 3 |
| YKC | 26 | 18 | 5 | 10 | 63 | 142 | 217 | 109 | 35 | 39 | 32 | 43 | 6 | 11 | 11 | 9 | 5 | 11 | 5 | 14 | 14 | 14 | 15 | 22 |
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