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 | 4 | 2 | 5 | 8 | 9 | 46 | 42 | 24 | 23 | 21 | 71 | 26 | 29 | 18 | 11 | 10 | 8 | 4 | 5 | 4 | 7 | 8 | 2 | 6 |
| ABG | 5 | 6 | 9 | 17 | 12 | 11 | 7 | 8 | 7 | 12 | 33 | 10 | 10 | 8 | 10 | 12 | 9 | 7 | 7 | 6 | 9 | 12 | 9 | 8 |
| ABK | 87 | 20 | 19 | 30 | 20 | 12 | 36 | 22 | 27 | 40 | 110 | 51 | 48 | 35 | 94 | 88 | 43 | 20 | 13 | 16 | 29 | 26 | 39 | 39 |
| AIA | 9 | 5 | 6 | 9 | 11 | 10 | 8 | 6 | 10 | 6 | 28 | 9 | 6 | 16 | 11 | 4 | 6 | 10 | 6 | 8 | 6 | 7 | 4 | 6 |
| AMS | 5 | 2 | 4 | 8 | 7 | 3 | 10 | 10 | 7 | 21 | 24 | 20 | 4 | 3 | 17 | 9 | 6 | 4 | 3 | 4 | 3 | 3 | 3 | 6 |
| API | 9 | 4 | 8 | 5 | 5 | 1 | 7 | 5 | 5 | 5 | 17 | 3 | 4 | 3 | 15 | 2 | 3 | 4 | 3 | 6 | 3 | 13 | 6 | 7 |
| AQU | 2 | 3 | 3 | 3 | 3 | 5 | 4 | 8 | 4 | 17 | 29 | 23 | 6 | 12 | 11 | 17 | 9 | 4 | 3 | 6 | 6 | 8 | 2 | 7 |
| ARS | ||||||||||||||||||||||||
| ASC | 6 | 3 | 5 | 3 | 3 | 7 | 2 | 6 | 9 | 19 | 12 | 10 | 5 | 7 | 11 | 7 | 7 | 2 | 3 | 3 | 8 | 6 | 1 | 5 |
| ASP | 2 | 2 | 6 | 5 | 17 | 4 | 5 | 8 | 10 | 7 | 34 | 25 | 6 | 5 | 15 | 5 | 5 | 5 | 4 | 4 | 4 | 7 | 2 | 7 |
| BDV | 2 | 3 | 3 | 4 | 4 | 3 | 4 | 12 | 5 | 14 | 37 | 24 | 6 | 7 | 8 | 15 | 5 | 7 | 5 | 6 | 6 | 8 | 3 | 8 |
| BEL | 4 | 4 | 5 | 5 | 5 | 5 | 6 | 12 | 9 | 17 | 46 | 33 | 7 | 9 | 12 | 11 | 7 | 10 | 7 | 7 | 6 | 10 | 5 | 10 |
| BFE | 5 | 4 | 6 | 7 | 8 | 5 | 5 | 9 | 17 | 21 | 59 | 34 | 11 | 13 | 17 | 12 | 13 | 14 | 10 | 10 | 8 | 8 | 6 | 11 |
| BFO | ||||||||||||||||||||||||
| BLC | 39 | 44 | 24 | 21 | 18 | 50 | 27 | 20 | 48 | 47 | 140 | 81 | 71 | 107 | 276 | 267 | 105 | 56 | 98 | 74 | 136 | 67 | 71 | 53 |
| BMT | 8 | 10 | 7 | 12 | 10 | 17 | 6 | 7 | 10 | 16 | 41 | 31 | 7 | 6 | 5 | 6 | 5 | 6 | 5 | 5 | 6 | 12 | 4 | 9 |
| BNG | 6 | 3 | 4 | 3 | 4 | 11 | 13 | 16 | 19 | 24 | 39 | 8 | 13 | 14 | 14 | 10 | 7 | 4 | 5 | 4 | 8 | 8 | 3 | 5 |
| BOU | 10 | 5 | 7 | 8 | 8 | 18 | 5 | 9 | 15 | 10 | 37 | 31 | 6 | 13 | 9 | 13 | 11 | 7 | 11 | 19 | 10 | 14 | 8 | 10 |
| BOX | 8 | 4 | 6 | 9 | 12 | 6 | 15 | 11 | 12 | 25 | 78 | 46 | 16 | 16 | 19 | 9 | 11 | 12 | 6 | 9 | 10 | 11 | 7 | 11 |
| BRW | 38 | 64 | 81 | 120 | 87 | 21 | 93 | 178 | 267 | 125 | 200 | 182 | 91 | 75 | 534 | 178 | 203 | 131 | 105 | 57 | 117 | 70 | 85 | 61 |
| BSL | 10 | 4 | 6 | 7 | 7 | 14 | 6 | 7 | 11 | 10 | 23 | 25 | 8 | 17 | 9 | 5 | 12 | 5 | 10 | 17 | 11 | 10 | 5 | 10 |
| CBB | 31 | 56 | 23 | 30 | 21 | 19 | 34 | 9 | 36 | 33 | 53 | 70 | 44 | 34 | 121 | 220 | 99 | 65 | 88 | 58 | 65 | 50 | 65 | 82 |
| CLF | 3 | 3 | 4 | 4 | 4 | 3 | 7 | 10 | 5 | 19 | 36 | 19 | 6 | 7 | 8 | 16 | 5 | 7 | 4 | 7 | 6 | 7 | 3 | 8 |
| CMO | 23 | 26 | 43 | 69 | 52 | 22 | 31 | 126 | 132 | 61 | 254 | 283 | 71 | 46 | 623 | 242 | 65 | 21 | 26 | 24 | 19 | 17 | 29 | 15 |
| CNB | 5 | 9 | 9 | 7 | 5 | 19 | 5 | 6 | 12 | 9 | 39 | 25 | 8 | 8 | 22 | 8 | 5 | 5 | 4 | 4 | 6 | 3 | 9 | 13 |
| CSY | ||||||||||||||||||||||||
| CTA | 5 | 6 | 11 | 13 | 16 | 3 | 4 | 8 | 10 | 8 | 34 | 22 | 6 | 6 | 17 | 3 | 4 | 5 | 4 | 4 | 5 | 6 | 3 | 7 |
| CZT | 4 | 2 | 5 | 7 | 4 | 5 | 11 | 7 | 5 | 33 | 28 | 21 | 6 | 5 | 12 | 5 | 3 | 3 | 3 | 3 | 3 | 5 | 5 | 3 |
| DLR | 7 | 4 | 6 | 7 | 5 | 15 | 7 | 9 | 10 | 10 | 29 | 30 | 4 | 13 | 9 | 14 | 11 | 9 | 6 | 13 | 9 | 11 | 5 | 9 |
| DOU | 4 | 4 | 5 | 7 | 4 | 3 | 7 | 13 | 7 | 20 | 42 | 20 | 8 | 8 | 9 | 16 | 6 | 8 | 5 | 8 | 7 | 9 | 6 | 9 |
| DRV | 42 | 59 | 100 | 102 | 36 | 22 | 37 | 30 | 39 | 15 | 44 | 33 | 16 | 34 | 59 | 36 | 23 | 15 | 17 | 23 | 32 | 31 | 56 | 40 |
| EBR | 2 | 3 | 4 | 3 | 12 | 16 | 8 | 7 | 11 | 21 | 33 | 22 | 7 | 9 | 14 | 20 | 14 | 11 | 8 | 11 | 7 | 9 | 3 | 7 |
| ESK | 6 | 6 | 7 | 9 | 7 | 5 | 9 | 12 | 14 | 22 | 53 | 25 | 9 | 12 | 17 | 13 | 12 | 14 | 9 | 11 | 8 | 10 | 6 | 11 |
| EUA | ||||||||||||||||||||||||
| EYR | 3 | 4 | 8 | 12 | 6 | 13 | 7 | 8 | 14 | 9 | 19 | 9 | 6 | 6 | 31 | 14 | 7 | 7 | 4 | 4 | 12 | 7 | 13 | 15 |
| FCC | 60 | 34 | 18 | 17 | 81 | 263 | 50 | 78 | 143 | 119 | 395 | 344 | 81 | 76 | 239 | 180 | 58 | 39 | 52 | 52 | 69 | 64 | 47 | 35 |
| FRD | 11 | 5 | 6 | 7 | 12 | 9 | 4 | 5 | 13 | 10 | 11 | 6 | 13 | 21 | 16 | 7 | 8 | 4 | 13 | 21 | 11 | 9 | 8 | 9 |
| FRN | 4 | 7 | 7 | 7 | 7 | 12 | 6 | 13 | 13 | 8 | 34 | 30 | 7 | 3 | 5 | 18 | 6 | 5 | 6 | 18 | 8 | 13 | 7 | 8 |
| FUR | 2 | 3 | 4 | 4 | 4 | 3 | 4 | 11 | 6 | 15 | 35 | 23 | 6 | 8 | 8 | 16 | 6 | 6 | 5 | 7 | 7 | 8 | 3 | 8 |
| GCK | ||||||||||||||||||||||||
| GDH | 48 | 25 | 18 | 17 | 16 | 13 | 35 | 19 | 28 | 145 | 188 | 110 | 69 | 158 | 167 | 73 | 141 | 34 | 80 | 62 | 71 | 36 | 48 | 71 |
| GNA | 7 | 9 | 7 | 4 | 7 | 7 | 5 | 10 | 13 | 7 | 26 | 22 | 5 | 5 | 10 | 9 | 4 | 3 | 3 | 4 | 3 | 3 | 3 | 3 |
| GUA | 12 | 4 | 12 | 11 | 17 | 9 | 17 | 5 | 8 | 7 | 27 | 16 | 4 | 4 | 10 | 2 | 3 | 5 | 3 | 4 | 3 | 18 | 16 | 13 |
| GUI | 4 | 3 | 4 | 4 | 3 | 5 | 6 | 3 | 9 | 23 | 17 | 14 | 7 | 9 | 13 | 9 | 7 | 6 | 6 | 6 | 6 | 7 | 2 | 6 |
| GZH | 2 | 8 | 9 | 15 | 5 | 3 | 10 | 5 | 8 | 12 | 32 | 21 | 6 | 4 | 4 | 8 | 4 | 5 | 5 | 3 | 5 | 9 | 2 | 7 |
| HAD | 4 | 3 | 6 | 5 | 4 | 3 | 8 | 8 | 8 | 17 | 39 | 18 | 6 | 6 | 8 | 16 | 6 | 10 | 6 | 8 | 6 | 7 | 4 | 9 |
| HBK | 5 | 3 | 6 | 4 | 5 | 5 | 4 | 5 | 11 | 31 | 30 | 8 | 11 | 13 | 13 | 12 | 5 | 4 | 5 | 4 | 6 | 7 | 2 | 4 |
| HER | 6 | 3 | 5 | 4 | 2 | 7 | 4 | 5 | 5 | 27 | 27 | 7 | 7 | 7 | 9 | 8 | 4 | 5 | 3 | 3 | 5 | 5 | 3 | 3 |
| HLP | 7 | 6 | 5 | 8 | 9 | 4 | 6 | 11 | 17 | 17 | 58 | 30 | 10 | 10 | 14 | 9 | 8 | 11 | 8 | 11 | 12 | 10 | 5 | 11 |
| HON | 2 | 7 | 10 | 8 | 4 | 6 | 7 | 8 | 5 | 5 | 14 | 4 | 1 | 3 | 15 | 6 | 6 | 3 | 6 | 5 | 5 | 15 | 9 | 4 |
| HRB | 2 | 3 | 3 | 4 | 5 | 3 | 4 | 12 | 6 | 16 | 38 | 28 | 7 | 8 | 10 | 16 | 6 | 7 | 5 | 7 | 7 | 9 | 4 | 9 |
| HRN | 37 | 19 | 57 | 90 | 80 | 31 | 105 | 66 | 91 | 154 | 307 | 101 | 134 | 106 | 77 | 120 | 76 | 38 | 51 | 25 | 23 | 44 | 39 | 21 |
| HUA | 7 | 4 | 6 | 9 | 6 | 10 | 10 | 10 | 11 | 7 | 16 | 16 | 20 | 48 | 38 | 31 | 30 | 24 | 38 | 41 | 35 | 10 | 5 | 10 |
| HYB | ||||||||||||||||||||||||
| IPM | ||||||||||||||||||||||||
| IQA | 39 | 13 | 23 | 31 | 23 | 27 | 23 | 34 | 43 | 175 | 266 | 91 | 112 | 89 | 66 | 102 | 76 | 62 | 55 | 122 | 183 | 57 | 61 | 83 |
| IRT | 15 | 8 | 11 | 6 | 9 | 19 | 12 | 13 | 14 | 12 | 57 | 40 | 8 | 6 | 14 | 6 | 8 | 6 | 8 | 3 | 9 | 15 | 4 | 4 |
| IZN | ||||||||||||||||||||||||
| KAK | 4 | 10 | 7 | 6 | 5 | 4 | 8 | 4 | 6 | 7 | 27 | 21 | 4 | 5 | 7 | 2 | 4 | 4 | 4 | 2 | 2 | 9 | 3 | 5 |
| KDU | 14 | 12 | 10 | 16 | 21 | 4 | 11 | 6 | 8 | 6 | 31 | 20 | 5 | 4 | 10 | 5 | 4 | 4 | 3 | 4 | 4 | 7 | 2 | 3 |
| KMH | ||||||||||||||||||||||||
| KNY | 6 | 5 | 9 | 8 | 3 | 8 | 9 | 4 | 7 | 10 | 28 | 22 | 5 | 5 | 6 | 3 | 4 | 5 | 4 | 3 | 3 | 8 | 3 | 6 |
| KOU | 7 | 2 | 4 | 4 | 5 | 7 | 4 | 6 | 9 | 14 | 9 | 9 | 18 | 7 | 4 | 8 | 5 | 4 | 12 | 11 | 14 | 6 | 4 | 6 |
| LER | 5 | 4 | 6 | 7 | 7 | 5 | 6 | 9 | 18 | 17 | 50 | 28 | 12 | 16 | 21 | 14 | 18 | 14 | 8 | 6 | 6 | 6 | 5 | 9 |
| LRM | 3 | 7 | 6 | 5 | 8 | 8 | 9 | 10 | 13 | 7 | 30 | 22 | 7 | 4 | 11 | 9 | 5 | 5 | 4 | 5 | 4 | 5 | 3 | 3 |
| LVV | 4 | 3 | 4 | 4 | 5 | 5 | 5 | 12 | 8 | 13 | 40 | 26 | 9 | 6 | 10 | 14 | 7 | 9 | 4 | 8 | 9 | 12 | 5 | 9 |
| LYC | ||||||||||||||||||||||||
| LZH | 4 | 6 | 10 | 7 | 6 | 15 | 4 | 7 | 11 | 14 | 40 | 25 | 7 | 5 | 6 | 8 | 6 | 6 | 5 | 5 | 7 | 11 | 3 | 9 |
| MAB | ||||||||||||||||||||||||
| MAW | ||||||||||||||||||||||||
| MBO | 5 | 2 | 4 | 3 | 4 | 5 | 2 | 6 | 15 | 39 | 22 | 13 | 10 | 14 | 10 | 5 | 9 | 4 | 5 | 7 | 10 | 7 | 3 | 6 |
| MCQ | 11 | 17 | 18 | 26 | 19 | 15 | 15 | 46 | 41 | 21 | 182 | 87 | 34 | 71 | 382 | 149 | 12 | 10 | 7 | 6 | 13 | 9 | 10 | 16 |
| MEA | 28 | 20 | 14 | 21 | 19 | 31 | 11 | 46 | 71 | 23 | 205 | 171 | 18 | 12 | 84 | 69 | 26 | 22 | 19 | 33 | 31 | 21 | 20 | 21 |
| MGD | ||||||||||||||||||||||||
| MID | ||||||||||||||||||||||||
| MMB | 5 | 12 | 10 | 11 | 11 | 8 | 10 | 5 | 9 | 10 | 36 | 32 | 6 | 8 | 10 | 4 | 7 | 5 | 6 | 3 | 5 | 8 | 8 | 6 |
| NAQ | 76 | 35 | 31 | 69 | 52 | 58 | 52 | 63 | 67 | 48 | 74 | 55 | 27 | 21 | 24 | 20 | 45 | 32 | 20 | 30 | 55 | 23 | 26 | 66 |
| NCK | 2 | 3 | 3 | 4 | 4 | 3 | 4 | 10 | 4 | 16 | 35 | 26 | 7 | 10 | 9 | 15 | 7 | 6 | 4 | 7 | 6 | 8 | 3 | 8 |
| NEW | ||||||||||||||||||||||||
| NGK | 3 | 4 | 5 | 5 | 6 | 3 | 4 | 11 | 11 | 17 | 49 | 30 | 6 | 8 | 11 | 12 | 7 | 10 | 7 | 8 | 8 | 9 | 5 | 10 |
| NUR | 10 | 5 | 6 | 8 | 9 | 5 | 15 | 10 | 19 | 23 | 76 | 46 | 20 | 15 | 23 | 11 | 15 | 13 | 7 | 7 | 7 | 10 | 6 | 10 |
| NVS | 5 | 3 | 10 | 8 | 17 | 6 | 7 | 14 | 24 | 12 | 55 | 35 | 8 | 5 | 15 | 7 | 5 | 6 | 5 | 5 | 9 | 10 | 5 | 6 |
| OTT | 12 | 6 | 6 | 8 | 16 | 7 | 5 | 8 | 19 | 10 | 25 | 24 | 15 | 19 | 20 | 13 | 11 | 8 | 20 | 24 | 16 | 11 | 13 | 12 |
| PAF | 8 | 5 | 9 | 14 | 12 | 8 | 11 | 10 | 9 | 45 | 38 | 22 | 10 | 8 | 20 | 7 | 7 | 5 | 5 | 4 | 7 | 7 | 7 | 6 |
| PAG | ||||||||||||||||||||||||
| PEG | ||||||||||||||||||||||||
| PHU | 3 | 12 | 10 | 14 | 7 | 6 | 13 | 6 | 10 | 14 | 36 | 22 | 7 | 4 | 3 | 10 | 6 | 6 | 2 | |||||
| PPT | 8 | 3 | 3 | 3 | 3 | 5 | 7 | 6 | 5 | 5 | 18 | 11 | 3 | 3 | 14 | 3 | 5 | 10 | 10 | 13 | 5 | 5 | 14 | 15 |
| PST | ||||||||||||||||||||||||
| QSB | 3 | 4 | 5 | 5 | 5 | 3 | 4 | 6 | 12 | 23 | 36 | 18 | 8 | 7 | 15 | 13 | 11 | 7 | 4 | 8 | 11 | 13 | 5 | 10 |
| RES | 53 | 50 | 31 | 42 | 24 | 20 | 42 | 13 | 50 | 70 | 53 | 99 | 82 | 66 | 157 | 347 | 257 | 339 | 303 | 223 | 121 | 132 | 46 | 58 |
| SBA | 31 | 69 | 17 | 29 | 17 | 19 | 33 | 46 | 31 | 23 | 108 | 71 | 22 | 21 | 89 | 84 | 75 | 40 | 64 | 52 | 55 | 21 | 38 | 45 |
| SFS | ||||||||||||||||||||||||
| SHU | ||||||||||||||||||||||||
| SIT | 18 | 10 | 13 | 28 | 18 | 19 | 6 | 28 | 32 | 8 | 47 | 49 | 12 | 6 | 86 | 53 | 12 | 13 | 13 | 10 | 11 | 12 | 11 | 13 |
| SJG | 7 | 2 | 4 | 4 | 5 | 6 | 3 | 4 | 8 | 9 | 7 | 4 | 6 | 1 | 6 | 2 | 6 | 3 | 5 | 6 | 13 | 6 | 5 | 5 |
| SOD | 72 | 9 | 16 | 22 | 15 | 7 | 27 | 12 | 27 | 31 | 111 | 51 | 41 | 31 | 71 | 64 | 31 | 16 | 11 | 12 | 19 | 19 | 16 | 19 |
| SPT | 2 | 3 | 4 | 3 | 2 | 5 | 6 | 5 | 7 | 16 | 32 | 19 | 7 | 7 | 12 | 14 | 9 | 4 | 3 | 7 | 6 | 8 | 2 | 7 |
| STJ | 7 | 6 | 4 | 8 | 7 | 9 | 4 | 5 | 12 | 12 | 20 | 13 | 14 | 17 | 18 | 19 | 8 | 10 | 13 | 13 | 11 | 10 | 6 | 7 |
| SUA | ||||||||||||||||||||||||
| TAM | 3 | 3 | 4 | 3 | 4 | 4 | 5 | 9 | 17 | 32 | 25 | 12 | 9 | 13 | 12 | 9 | 12 | 4 | 3 | 6 | 7 | 9 | 3 | 7 |
| TAN | ||||||||||||||||||||||||
| TDC | ||||||||||||||||||||||||
| THL | 21 | 38 | 29 | 24 | 18 | 14 | 50 | 24 | 36 | 110 | 77 | 106 | 128 | 78 | 73 | 147 | 88 | 101 | 59 | 75 | 40 | 83 | 31 | 20 |
| THY | 2 | 3 | 4 | 5 | 5 | 4 | 4 | 11 | 4 | 18 | 39 | 29 | 9 | 12 | 10 | 17 | 8 | 7 | 5 | 8 | 8 | 10 | 4 | 9 |
| TRW | 8 | 4 | 5 | 7 | 6 | 9 | 7 | 5 | 9 | 6 | 9 | 8 | 6 | 15 | 13 | 7 | 6 | 13 | 4 | 8 | 3 | 10 | 3 | 5 |
| TSU | 6 | 3 | 6 | 4 | 4 | 9 | 5 | 9 | 10 | 24 | 29 | 7 | 11 | 15 | 15 | 11 | 5 | 4 | 4 | 4 | 7 | 7 | 2 | 4 |
| TUC | 5 | 4 | 6 | 7 | 6 | 14 | 6 | 11 | 12 | 10 | 35 | 31 | 6 | 8 | 6 | 16 | 10 | 4 | 8 | 12 | 8 | 13 | 7 | 10 |
| UPS | 6 | 4 | 5 | 6 | 7 | 4 | 8 | 9 | 21 | 18 | 64 | 36 | 17 | 15 | 20 | 10 | 13 | 12 | 7 | 6 | 7 | 7 | 5 | 10 |
| VAL | 4 | 3 | 5 | 4 | 3 | 4 | 9 | 7 | 7 | 14 | 38 | 15 | 5 | 5 | 8 | 16 | 7 | 10 | 6 | 7 | 5 | 6 | 4 | 7 |
| VIC | 12 | 11 | 11 | 14 | 13 | 14 | 6 | 17 | 15 | 9 | 32 | 25 | 9 | 4 | 4 | 10 | 14 | 17 | 9 | 24 | 14 | 14 | 11 | 11 |
| VSS | 7 | 3 | 4 | 5 | 6 | 8 | 6 | 7 | 13 | 15 | 12 | 7 | 11 | 14 | 8 | 15 | 19 | 12 | 10 | 6 | 10 | 10 | 2 | 6 |
| WNG | 5 | 4 | 5 | 6 | 8 | 4 | 5 | |||||||||||||||||
| YKC | 23 | 36 | 28 | 43 | 47 | 90 | 23 | 54 | 288 | 105 | 497 | 317 | 85 | 96 | 367 | 334 | 63 | 41 | 47 | 53 | 55 | 53 | 24 | 27 |
- Date modified: