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 | 3 | 3 | 9 | 15 | 4 | 16 | 13 | 12 | 6 | 4 | 4 | 4 | 4 | 3 | 6 | 7 | 6 | 2 | 3 | 4 | 3 | 3 | 7 | 3 |
| ABG | 3 | 10 | 6 | 5 | 16 | 16 | 7 | 14 | 5 | 7 | 7 | 5 | 6 | 3 | 4 | 2 | 3 | 1 | 2 | 4 | 1 | 3 | 2 | 2 |
| ABK | 13 | 11 | 27 | 12 | 15 | 30 | 20 | 18 | 41 | 17 | 13 | 17 | 17 | 13 | 24 | 39 | 40 | 13 | 45 | 42 | 30 | 132 | 48 | 56 |
| AIA | 9 | 2 | 2 | 11 | 9 | 17 | 21 | 41 | 39 | 8 | 2 | 4 | 9 | 10 | 4 | 4 | 17 | 4 | 9 | 5 | 9 | 6 | 9 | 6 |
| AMS | 7 | 7 | 10 | 7 | 9 | 24 | 11 | 13 | 4 | 6 | 6 | 5 | 4 | 5 | 15 | 26 | 13 | 3 | 16 | 9 | 6 | 11 | 11 | 6 |
| API | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 1 | 1 | 1 | 1 | 0 |
| AQU | 3 | 3 | 7 | 2 | 5 | 7 | 11 | 5 | 22 | 17 | 20 | 16 | 6 | 13 | 16 | 21 | 4 | 5 | 10 | 10 | 5 | 15 | 6 | 6 |
| ARS | ||||||||||||||||||||||||
| ASC | 2 | 1 | 3 | 2 | 2 | 2 | 2 | 4 | 16 | 14 | 5 | 5 | 4 | 7 | 16 | 12 | 3 | 2 | 3 | 4 | 6 | 3 | 3 | 1 |
| ASP | 5 | 4 | 5 | 1 | 4 | 12 | 4 | 11 | 9 | 6 | 3 | 2 | 13 | 4 | 5 | 10 | 6 | 3 | 5 | 13 | 5 | 4 | 12 | 7 |
| BDV | 4 | 4 | 9 | 2 | 5 | 6 | 10 | 5 | 16 | 13 | 24 | 18 | 4 | 11 | 17 | 24 | 4 | 5 | 14 | 16 | 6 | 21 | 10 | 9 |
| BEL | 6 | 5 | 10 | 3 | 7 | 7 | 11 | 11 | 18 | 16 | 21 | 15 | 7 | 11 | 18 | 30 | 6 | 7 | 18 | 19 | 6 | 24 | 11 | 9 |
| BFE | 6 | 5 | 12 | 3 | 7 | 11 | 10 | 7 | 16 | 12 | 20 | 19 | 4 | 6 | 19 | 30 | 7 | 6 | 20 | 22 | 8 | 35 | 17 | 14 |
| BFO | ||||||||||||||||||||||||
| BLC | 40 | 16 | 20 | 11 | 59 | 86 | 50 | 63 | 105 | 19 | 19 | 33 | 67 | 85 | 87 | 76 | 46 | 53 | 42 | 56 | 43 | 60 | 47 | 47 |
| BMT | 1 | 1 | 2 | 3 | 3 | 1 | 0 | 1 | 2 | 1 | 0 | 0 | 3 | 1 | 1 | 0 | 1 | 0 | 1 | 1 | 0 | 0 | 2 | 1 |
| BNG | 0 | 0 | 0 | 0 | 1 | 0 | 1 | 1 | 0 | 1 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| BOU | 8 | 2 | 4 | 5 | 11 | 16 | 4 | 41 | 51 | 7 | 4 | 9 | 14 | 4 | 17 | 16 | 20 | 19 | 8 | 6 | 4 | 4 | 9 | 10 |
| BOX | 13 | 7 | 12 | 8 | 6 | 14 | 6 | 11 | 21 | 14 | 12 | 6 | 13 | 10 | 16 | 42 | 20 | 10 | 26 | 26 | 6 | 22 | 7 | 7 |
| BRW | 32 | 28 | 20 | 17 | 70 | 45 | 83 | 122 | 209 | 132 | 37 | 34 | 246 | 153 | 116 | 70 | 43 | 49 | 80 | 82 | 45 | 41 | 46 | 40 |
| BSL | 6 | 1 | 1 | 2 | 12 | 10 | 3 | 35 | 40 | 4 | 3 | 8 | 4 | 18 | 11 | 21 | 9 | 4 | 7 | 6 | 6 | 6 | 9 | 6 |
| CBB | 46 | 13 | 29 | 16 | 45 | 22 | 54 | 27 | 25 | 22 | 13 | 32 | 69 | 32 | 39 | 46 | 52 | 69 | 43 | 77 | 61 | 64 | 79 | 51 |
| CLF | 6 | 4 | 9 | 2 | 7 | 7 | 11 | 5 | 15 | 8 | 17 | 27 | 13 | 10 | 18 | 23 | 5 | 3 | 12 | 13 | 7 | 23 | 10 | 8 |
| CMO | 11 | 7 | 6 | 4 | 19 | 56 | 30 | 219 | 219 | 66 | 63 | 68 | 176 | 122 | 195 | 40 | 29 | 36 | 25 | 33 | 22 | 26 | 23 | 10 |
| CNB | 5 | 5 | 4 | 5 | 5 | 7 | 4 | 21 | 27 | 8 | 3 | 4 | 24 | 6 | 14 | 16 | 14 | 5 | 8 | 17 | 6 | 5 | 7 | 6 |
| CSY | ||||||||||||||||||||||||
| CTA | 5 | 2 | 3 | 4 | 4 | 7 | 2 | 11 | 12 | 6 | 2 | 2 | 9 | 4 | 6 | 9 | 6 | 2 | 4 | 13 | 4 | 6 | 7 | 4 |
| CZT | 6 | 3 | 3 | 2 | 6 | 9 | 14 | 22 | 8 | 2 | 2 | 6 | 2 | 4 | 14 | 17 | 12 | 7 | 18 | 13 | 11 | 21 | 13 | 7 |
| DLR | 5 | 3 | 2 | 3 | 6 | 8 | 2 | 24 | 26 | 1 | 2 | 5 | 6 | 4 | 6 | 25 | 14 | 7 | 3 | 6 | 3 | 1 | 9 | 11 |
| DOU | 6 | 4 | 9 | 2 | 8 | 7 | 11 | 6 | 16 | 7 | 20 | 26 | 12 | 10 | 19 | 25 | 5 | 2 | 14 | 15 | 6 | 25 | 12 | 10 |
| DRV | 66 | 48 | 58 | 55 | 40 | 62 | 45 | 42 | 58 | 13 | 9 | 11 | 55 | 37 | 45 | 53 | 50 | 12 | 30 | 39 | 27 | 35 | 36 | 46 |
| EBR | 1 | 1 | 1 | 0 | 1 | 1 | 1 | 1 | 2 | 2 | 3 | 3 | 2 | 1 | 3 | 3 | 2 | 1 | 1 | 1 | 1 | 2 | 1 | 1 |
| ESK | 9 | 4 | 9 | 2 | 11 | 9 | 11 | 7 | 16 | 2 | 15 | 23 | 15 | 6 | 13 | 23 | 6 | 5 | 19 | 14 | 8 | 32 | 14 | 12 |
| EUA | ||||||||||||||||||||||||
| EYR | 14 | 13 | 7 | 7 | 13 | 8 | 9 | 49 | 45 | 7 | 3 | 8 | 29 | 12 | 18 | 12 | 10 | 4 | 6 | 13 | 10 | 8 | 5 | 17 |
| FCC | 23 | 5 | 6 | 13 | 145 | 267 | 122 | 150 | 188 | 63 | 25 | 50 | 92 | 117 | 44 | 16 | 30 | 39 | 29 | 27 | 18 | 33 | 24 | 32 |
| FRD | 5 | 1 | 2 | 2 | 13 | 11 | 6 | 39 | 42 | 5 | 3 | 9 | 5 | 21 | 10 | 13 | 8 | 7 | 2 | 7 | 9 | 6 | 6 | 3 |
| FRN | 12 | 4 | 5 | 3 | 7 | 8 | 4 | 14 | 19 | 8 | 4 | 7 | 14 | 13 | 14 | 5 | 13 | 25 | 20 | 3 | 2 | 8 | 5 | 10 |
| FUR | 4 | 3 | 9 | 2 | 5 | 7 | 11 | 6 | 17 | 11 | 24 | 20 | 4 | 11 | 18 | 24 | 4 | 4 | 13 | 14 | 6 | 21 | 10 | 8 |
| GCK | ||||||||||||||||||||||||
| GDH | 61 | 11 | 20 | 28 | 35 | 37 | 27 | 38 | 38 | 46 | 49 | 51 | 24 | 34 | 110 | 32 | 39 | 21 | 26 | 30 | 26 | 33 | 51 | 24 |
| GNA | 6 | 10 | 10 | 9 | 4 | 11 | 5 | 9 | 8 | 9 | 4 | 4 | 25 | 12 | 12 | 17 | 14 | 9 | 12 | 19 | 11 | 15 | 19 | 14 |
| GUA | 7 | 19 | 25 | 10 | 4 | 10 | 7 | 2 | 2 | 3 | 0 | 1 | 2 | 1 | 2 | 1 | 2 | 2 | 3 | 5 | 16 | 13 | 9 | 2 |
| GUI | 4 | 2 | 5 | 3 | 4 | 4 | 4 | 8 | 3 | 4 | 17 | 28 | 22 | 7 | 12 | 14 | 9 | 12 | 10 | 4 | 6 | 9 | 3 | 2 |
| GZH | 1 | 0 | 1 | 1 | 1 | 1 | 0 | 1 | 1 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 |
| HAD | 7 | 3 | 8 | 2 | 8 | 7 | 10 | 6 | 13 | 3 | 15 | 24 | 15 | 5 | 14 | 20 | 5 | 4 | 16 | 10 | 7 | 23 | 11 | 9 |
| HBK | 3 | 2 | 3 | 4 | 5 | 7 | 25 | 10 | 11 | 18 | 20 | 10 | 8 | 4 | 12 | 12 | 5 | 2 | 8 | 5 | 6 | 10 | 7 | 3 |
| HER | 3 | 2 | 2 | 4 | 4 | 5 | 16 | 9 | 4 | 5 | 13 | 19 | 11 | 3 | 10 | 9 | 5 | 2 | 8 | 5 | 6 | 13 | 8 | 3 |
| HLP | 7 | 5 | 13 | 4 | 6 | 9 | 11 | 8 | 19 | 14 | 23 | 17 | 7 | 13 | 19 | 29 | 5 | 4 | 17 | 20 | 6 | 30 | 13 | 10 |
| HON | 4 | 4 | 3 | 3 | 3 | 2 | 4 | 13 | 8 | 1 | 3 | 4 | 5 | 7 | 2 | 3 | 14 | 9 | 4 | 7 | 15 | 20 | 12 | 2 |
| HRB | 4 | 4 | 9 | 2 | 7 | 7 | 9 | 8 | 20 | 15 | 23 | 15 | 8 | 12 | 17 | 26 | 3 | 6 | 15 | 15 | 6 | 20 | 9 | 8 |
| HRN | 64 | 38 | 58 | 47 | 70 | 79 | 93 | 73 | 62 | 38 | 36 | 41 | 42 | 34 | 61 | 31 | 65 | 22 | 23 | 37 | 16 | 54 | 45 | 25 |
| HUA | 2 | 2 | 1 | 2 | 2 | 5 | 5 | 3 | 2 | 4 | 2 | 2 | 3 | 7 | 8 | 5 | 6 | 8 | 10 | 15 | 6 | 7 | 3 | 2 |
| HYB | ||||||||||||||||||||||||
| IPM | ||||||||||||||||||||||||
| IQA | 61 | 21 | 26 | 27 | 32 | 61 | 40 | 44 | 99 | 111 | 136 | 101 | 33 | 41 | 100 | 46 | 49 | 61 | 69 | 53 | 62 | 53 | 68 | 34 |
| IRT | 4 | 7 | 8 | 19 | 23 | 12 | 7 | 9 | 9 | 5 | 12 | 3 | 27 | 7 | 3 | 4 | 6 | 4 | 4 | 4 | 1 | 10 | 21 | 14 |
| IZN | ||||||||||||||||||||||||
| KAK | 1 | 1 | 2 | 2 | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 1 | 0 | 1 | 0 | 1 | 1 | 2 | 1 |
| KDU | 4 | 5 | 5 | 2 | 2 | 7 | 3 | 7 | 5 | 6 | 2 | 2 | 7 | 3 | 3 | 6 | 4 | 2 | 3 | 10 | 3 | 2 | 10 | 4 |
| KMH | ||||||||||||||||||||||||
| KNY | 1 | 1 | 2 | 2 | 2 | 0 | 1 | 1 | 1 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 1 | 0 | 1 | 1 | 1 | 1 | 2 | 2 |
| KOU | 2 | 1 | 2 | 2 | 1 | 2 | 4 | 7 | 3 | 5 | 2 | 5 | 5 | 4 | 10 | 12 | 6 | 5 | 9 | 10 | 5 | 1 | 2 | 2 |
| LER | 10 | 4 | 10 | 3 | 12 | 11 | 9 | 7 | 16 | 4 | 13 | 17 | 10 | 6 | 12 | 20 | 8 | 3 | 20 | 14 | 7 | 39 | 15 | 15 |
| LRM | 6 | 5 | 10 | 10 | 3 | 9 | 6 | 10 | 3 | 4 | 3 | 2 | 19 | 10 | 13 | 8 | 9 | 5 | 4 | 10 | 7 | 9 | 14 | 16 |
| LVV | 5 | 4 | 11 | 6 | 9 | 5 | 8 | 11 | 21 | 17 | 20 | 13 | 8 | 10 | 18 | 29 | 6 | 8 | 16 | 18 | 5 | 20 | 10 | 8 |
| LYC | ||||||||||||||||||||||||
| LZH | 9 | 8 | 7 | 20 | 24 | 11 | 5 | 10 | 10 | 7 | 7 | 3 | 14 | 4 | 3 | 2 | 4 | 2 | 3 | 4 | 2 | 7 | 13 | 7 |
| MAB | ||||||||||||||||||||||||
| MAW | ||||||||||||||||||||||||
| MBO | 3 | 1 | 5 | 3 | 2 | 4 | 5 | 3 | 13 | 9 | 12 | 13 | 14 | 11 | 19 | 17 | 9 | 8 | 2 | 6 | 6 | 6 | 2 | 1 |
| MCQ | 10 | 8 | 12 | 14 | 13 | 19 | 21 | 56 | 133 | 44 | 26 | 39 | 131 | 68 | 118 | 29 | 44 | 13 | 25 | 28 | 22 | 8 | 8 | 6 |
| MEA | 15 | 4 | 6 | 7 | 44 | 57 | 25 | 97 | 129 | 21 | 17 | 28 | 33 | 25 | 23 | 15 | 20 | 16 | 19 | 16 | 7 | 10 | 11 | 8 |
| MGD | ||||||||||||||||||||||||
| MID | ||||||||||||||||||||||||
| MMB | 1 | 1 | 3 | 2 | 1 | 1 | 1 | 2 | 1 | 0 | 1 | 0 | 2 | 0 | 0 | 1 | 2 | 1 | 1 | 1 | 1 | 1 | 2 | 1 |
| NAQ | 51 | 7 | 7 | 37 | 83 | 101 | 76 | 53 | 79 | 26 | 12 | 18 | 16 | 15 | 27 | 11 | 34 | 18 | 19 | 19 | 20 | 31 | 72 | 40 |
| NCK | 3 | 4 | 8 | 2 | 5 | 7 | 8 | 7 | 18 | 13 | 21 | 14 | 7 | 12 | 15 | 23 | 3 | 5 | 13 | 14 | 6 | 18 | 9 | 7 |
| NEW | 12 | 5 | 5 | 6 | 22 | 19 | 12 | 39 | 46 | 14 | 11 | 16 | 24 | 20 | 12 | 10 | 16 | 16 | 18 | 6 | 5 | 7 | 3 | 10 |
| NGK | 4 | 4 | 10 | 2 | 5 | 8 | 10 | 7 | 16 | 12 | 23 | 19 | 5 | 11 | 19 | 27 | 4 | 5 | 17 | 18 | 6 | 28 | 13 | 11 |
| NUR | 13 | 6 | 15 | 4 | 6 | 15 | 11 | 9 | 17 | 13 | 17 | 14 | 8 | 8 | 17 | 40 | 14 | 7 | 26 | 27 | 7 | 43 | 16 | 12 |
| NVS | 8 | 9 | 10 | 9 | 17 | 18 | 22 | 12 | 5 | 7 | 13 | 11 | 27 | 9 | 10 | 13 | 11 | 5 | 13 | 13 | 5 | 20 | 25 | 10 |
| OTT | 8 | 3 | 3 | 5 | 23 | 15 | 12 | 53 | 66 | 7 | 7 | 6 | 9 | 26 | 11 | 12 | 8 | 6 | 4 | 8 | 11 | 6 | 7 | 6 |
| PAF | 15 | 5 | 8 | 5 | 12 | 22 | 9 | 17 | 5 | 5 | 11 | 5 | 6 | 5 | 12 | 45 | 34 | 9 | 34 | 27 | 5 | 16 | 8 | 8 |
| PAG | ||||||||||||||||||||||||
| PEG | ||||||||||||||||||||||||
| PHU | 6 | 5 | 7 | 15 | 16 | 8 | 3 | 7 | 11 | 5 | 2 | 4 | 8 | 2 | 2 | 2 | 2 | 2 | 2 | 6 | 3 | 3 | 7 | 7 |
| PPT | 8 | 2 | 3 | 2 | 5 | 4 | 2 | 4 | 1 | 3 | 1 | 1 | 5 | 2 | 3 | 3 | 6 | 12 | 5 | 2 | 13 | 7 | 3 | 11 |
| PST | ||||||||||||||||||||||||
| QSB | 2 | 3 | 9 | 14 | 12 | 4 | 10 | 17 | 27 | 9 | 3 | 5 | 7 | 7 | 5 | 8 | 5 | 2 | 9 | 10 | 5 | 5 | 5 | 4 |
| RES | 17 | 12 | 32 | 24 | 23 | 30 | 37 | 41 | 30 | 22 | 15 | 23 | 73 | 28 | 17 | 46 | 79 | 68 | 37 | 51 | 42 | 39 | 30 | 36 |
| SBA | 43 | 33 | 29 | 30 | 34 | 33 | 36 | 86 | 102 | 15 | 18 | 27 | 44 | 36 | 16 | 28 | 19 | 11 | 57 | 58 | 57 | 38 | 67 | 54 |
| SFS | ||||||||||||||||||||||||
| SHU | ||||||||||||||||||||||||
| SIT | 9 | 5 | 5 | 5 | 18 | 29 | 27 | 134 | 85 | 20 | 6 | 23 | 72 | 72 | 17 | 16 | 19 | 7 | 19 | 16 | 14 | 15 | 10 | 7 |
| SJG | 2 | 1 | 2 | 2 | 3 | 2 | 4 | 13 | 12 | 6 | 6 | 5 | 3 | 9 | 7 | 5 | 17 | 11 | 6 | 11 | 9 | 3 | 6 | 2 |
| SOD | 24 | 9 | 23 | 10 | 8 | 27 | 14 | 14 | 25 | 13 | 14 | 16 | 10 | 9 | 23 | 52 | 35 | 10 | 34 | 28 | 22 | 94 | 42 | 31 |
| SPT | 5 | 2 | 6 | 2 | 5 | 5 | 8 | 7 | 6 | 11 | 22 | 24 | 12 | 5 | 16 | 19 | 7 | 6 | 9 | 6 | 4 | 13 | 7 | 4 |
| STJ | 6 | 3 | 4 | 8 | 5 | 18 | 6 | 16 | 12 | 15 | 5 | 6 | 6 | 16 | 16 | 7 | 17 | 6 | 16 | 8 | 5 | 8 | 11 | 5 |
| SUA | ||||||||||||||||||||||||
| TAM | 4 | 2 | 6 | 3 | 2 | 8 | 10 | 5 | 18 | 19 | 26 | 10 | 7 | 17 | 20 | 13 | 6 | 8 | 6 | 5 | 5 | 7 | 3 | 3 |
| TAN | ||||||||||||||||||||||||
| TDC | ||||||||||||||||||||||||
| THL | 34 | 14 | 29 | 24 | 19 | 40 | 23 | 59 | 25 | 11 | 11 | 44 | 56 | 16 | 75 | 33 | 61 | 46 | 56 | 31 | 38 | 51 | 27 | 21 |
| THY | 3 | 4 | 9 | 2 | 7 | 8 | 9 | 8 | 21 | 15 | 23 | 15 | 8 | 12 | 17 | 25 | 3 | 6 | 14 | 15 | 6 | 19 | 9 | 7 |
| TRW | 3 | 1 | 1 | 4 | 4 | 9 | 7 | 15 | 14 | 5 | 2 | 10 | 8 | 3 | 4 | 11 | 24 | 3 | 6 | 3 | 9 | 4 | 5 | 3 |
| TSU | 3 | 2 | 3 | 4 | 3 | 5 | 19 | 11 | 4 | 15 | 18 | 12 | 8 | 3 | 7 | 10 | 7 | 2 | 6 | 4 | 5 | 8 | 7 | 3 |
| TUC | 6 | 2 | 4 | 2 | 6 | 7 | 2 | 20 | 27 | 3 | 3 | 6 | 10 | 11 | 18 | 15 | 20 | 25 | 7 | 2 | 2 | 6 | 8 | 11 |
| UPS | 9 | 6 | 14 | 3 | 6 | 13 | 10 | 6 | 17 | 12 | 18 | 18 | 5 | 7 | 17 | 33 | 11 | 5 | 21 | 24 | 8 | 41 | 17 | 14 |
| VAL | 9 | 3 | 7 | 3 | 8 | 8 | 10 | 8 | 12 | 2 | 11 | 18 | 17 | 10 | 8 | 17 | 4 | 6 | 17 | 8 | 6 | 23 | 11 | 8 |
| VIC | 11 | 6 | 5 | 5 | 18 | 17 | 13 | 43 | 30 | 17 | 10 | 15 | 27 | 27 | 6 | 8 | 14 | 12 | 19 | 5 | 5 | 8 | 2 | 10 |
| VSS | 2 | 1 | 2 | 3 | 2 | 6 | 4 | 5 | 5 | 8 | 16 | 5 | 4 | 5 | 10 | 8 | 3 | 4 | 7 | 7 | 4 | 5 | 3 | 2 |
| WNG | 5 | 4 | 11 | 3 | 7 | 9 | 10 | 6 | 17 | 9 | 21 | 20 | 6 | 8 | 18 | 27 | 4 | 3 | 17 | 19 | 7 | 31 | 15 | 12 |
| YKC | 17 | 12 | 12 | 32 | 69 | 145 | 80 | 473 | 428 | 51 | 26 | 44 | 67 | 206 | 265 | 40 | 27 | 22 | 40 | 47 | 25 | 36 | 37 | 28 |
- Date modified: