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 | 1 | 2 | 6 | 11 | 8 | 8 | 2 | 8 | 13 | 8 | 2 | 2 | 2 | 6 | 2 | 3 | 1 | 1 | 1 | 3 | 2 | 1 | 1 |
| ABG | 9 | 4 | 8 | 14 | 8 | 3 | 7 | 7 | 5 | 9 | 4 | 3 | 6 | 3 | 4 | 3 | 2 | 5 | 5 | 5 | 5 | 4 | 4 | 4 |
| ABK | 37 | 4 | 6 | 13 | 31 | 17 | 34 | 30 | 28 | 16 | 16 | 25 | 8 | 14 | 15 | 10 | 24 | 46 | 29 | 70 | 246 | 194 | 71 | 163 |
| AIA | 2 | 1 | 4 | 11 | 7 | 6 | 22 | 15 | 14 | 18 | 5 | 2 | 6 | 2 | 4 | 1 | 2 | 3 | 5 | 6 | 7 | 9 | 5 | 2 |
| AMS | 1 | 2 | 3 | 2 | 5 | 2 | 9 | 9 | 8 | 1 | 4 | 2 | 3 | 1 | 2 | 2 | 2 | 7 | 7 | 8 | 16 | 13 | 1 | 5 |
| API | 1 | 2 | 1 | 1 | 2 | 3 | 2 | 6 | 4 | 3 | 2 | 2 | 1 | 1 | 1 | 2 | 2 | 2 | 2 | 1 | 2 | 2 | 4 | 2 |
| AQU | 1 | 1 | 1 | 2 | 2 | 3 | 3 | 4 | 6 | 9 | 2 | 2 | 3 | 2 | 5 | 7 | 5 | 2 | 3 | 1 | 3 | 4 | 2 | 1 |
| ARS | ||||||||||||||||||||||||
| ASC | 1 | 0 | 1 | 0 | 1 | 1 | 1 | 1 | 2 | 4 | 1 | 1 | 6 | 7 | 4 | 2 | 2 | 2 | 2 | 2 | 2 | 1 | 1 | 1 |
| ASP | 1 | 2 | 3 | 1 | 2 | 2 | 6 | 5 | 2 | 1 | 1 | 1 | 1 | 0 | 1 | 0 | 1 | 1 | 2 | 1 | 3 | 3 | 3 | 1 |
| BDV | 1 | 0 | 2 | 1 | 1 | 2 | 1 | 3 | 9 | 4 | 3 | 4 | 5 | 2 | 3 | 4 | 6 | 4 | 1 | 2 | 9 | 1 | 1 | 1 |
| BEL | 1 | 2 | 2 | 4 | 3 | 3 | 4 | 3 | 6 | 8 | 4 | 5 | 13 | 4 | 5 | 5 | 6 | 3 | 6 | 2 | 20 | 2 | 5 | 4 |
| BFE | 3 | 2 | 2 | 5 | 6 | 5 | 6 | 8 | 6 | 8 | 7 | 3 | 13 | 7 | 8 | 7 | 11 | 5 | 10 | 4 | 44 | 15 | 6 | 8 |
| BFO | ||||||||||||||||||||||||
| BLC | 55 | 30 | 47 | 66 | 198 | 243 | 228 | 225 | 107 | 32 | 81 | 48 | 37 | 70 | 45 | 30 | 89 | 133 | 83 | 169 | 166 | 257 | 133 | 66 |
| BMT | 4 | 5 | 2 | 2 | 6 | 1 | 8 | 8 | 2 | 3 | 2 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 1 | 0 | 1 | 1 | 2 | 1 |
| BNG | 1 | 1 | 1 | 1 | 4 | 12 | 2 | 5 | 3 | 1 | 3 | 2 | 1 | 2 | 2 | 4 | 4 | 2 | 2 | 1 | 3 | 1 | 2 | 2 |
| BOU | 2 | 1 | 3 | 5 | 3 | 2 | 20 | 18 | 3 | 4 | 4 | 1 | 1 | 2 | 8 | 12 | 5 | 3 | 8 | 1 | 11 | 7 | 4 | 2 |
| BOX | 4 | 1 | 1 | 1 | 3 | 4 | 2 | 8 | 7 | 5 | 2 | 3 | 8 | 3 | 5 | 3 | 8 | 4 | 5 | 6 | 33 | 19 | 3 | 8 |
| BRW | 13 | 6 | 16 | 23 | 82 | 83 | 115 | 239 | 53 | 80 | 66 | 104 | 45 | 33 | 28 | 46 | 97 | 83 | 166 | 46 | 68 | 33 | 27 | 35 |
| BSL | 2 | 3 | 6 | 8 | 4 | 7 | 6 | 13 | 8 | 4 | 5 | 3 | 5 | 11 | 7 | 1 | 3 | 4 | 12 | 5 | 13 | 5 | 6 | 4 |
| CBB | 70 | 59 | 62 | 14 | 93 | 105 | 129 | 79 | 57 | 11 | 39 | 18 | 48 | 49 | 96 | 168 | 90 | 152 | 337 | 224 | 157 | 170 | 187 | 47 |
| CLF | 1 | 1 | 1 | 1 | 2 | 2 | 2 | 2 | 7 | 8 | 8 | 7 | 8 | 8 | 4 | 7 | 6 | 5 | 4 | 2 | 5 | 5 | 2 | 1 |
| CMO | 10 | 6 | 18 | 18 | 103 | 51 | 229 | 213 | 100 | 173 | 69 | 105 | 42 | 45 | 8 | 4 | 24 | 84 | 29 | 38 | 37 | 11 | 28 | 24 |
| CNB | 1 | 2 | 5 | 6 | 6 | 4 | 2 | 14 | 8 | 3 | 4 | 6 | 5 | 1 | 0 | 1 | 1 | 3 | 7 | 4 | 7 | 8 | 4 | 4 |
| CSY | ||||||||||||||||||||||||
| CTA | 6 | 7 | 2 | 2 | 3 | 3 | 2 | 1 | 2 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 2 | 2 | 0 | 4 | 2 | 3 | 3 |
| CZT | 1 | 2 | 3 | 4 | 4 | 6 | 6 | 7 | 5 | 4 | 4 | 2 | 5 | 3 | 2 | 2 | 3 | 2 | 7 | 13 | 37 | 16 | 3 | 9 |
| DLR | 2 | 1 | 6 | 6 | 3 | 6 | 7 | 12 | 3 | 4 | 2 | 1 | 4 | 8 | 11 | 7 | 2 | 7 | 8 | 3 | 8 | 5 | 4 | 2 |
| DOU | 1 | 1 | 2 | 2 | 3 | 4 | 3 | 4 | 8 | 5 | 8 | 5 | 8 | 8 | 5 | 5 | 6 | 6 | 3 | 1 | 10 | 4 | 1 | 3 |
| DRV | 31 | 90 | 64 | 55 | 56 | 75 | 37 | 56 | 31 | 31 | 21 | 49 | 32 | 31 | 28 | 32 | 20 | 46 | 96 | 35 | 38 | 44 | 25 | 54 |
| EBR | 2 | 2 | 3 | 4 | 6 | 6 | 17 | 12 | 8 | 10 | 6 | 8 | 7 | 6 | 6 | 9 | 10 | 7 | 8 | 7 | 22 | 14 | 3 | 3 |
| ESK | 1 | 1 | 1 | 3 | 1 | 3 | 6 | 4 | 2 | 2 | 10 | 4 | 3 | 5 | 4 | 4 | 10 | 8 | 4 | 3 | 22 | 3 | 1 | 2 |
| EUA | ||||||||||||||||||||||||
| EYR | 5 | 4 | 6 | 4 | 3 | 4 | 13 | 16 | 4 | 4 | 3 | 5 | 3 | 2 | 2 | 2 | 2 | 3 | 6 | 2 | 4 | 3 | 1 | 3 |
| FCC | 13 | 19 | 153 | 125 | 223 | 135 | 457 | 407 | 138 | 95 | 65 | 64 | 26 | 20 | 18 | 12 | 16 | 16 | 50 | 37 | 92 | 59 | 48 | 48 |
| FRD | 3 | 1 | 5 | 3 | 2 | 4 | 5 | 10 | 6 | 8 | 2 | 1 | 2 | 6 | 5 | 3 | 9 | 11 | 5 | 6 | 8 | 11 | 2 | 7 |
| FRN | 2 | 4 | 1 | 3 | 1 | 1 | 1 | 8 | 1 | 2 | 2 | 0 | 3 | 5 | 4 | 16 | 19 | 10 | 10 | 14 | 5 | 7 | 2 | 3 |
| FUR | 1 | 1 | 1 | 1 | 2 | 1 | 3 | 2 | 7 | 6 | 5 | 1 | 4 | 5 | 3 | 5 | 5 | 4 | 1 | 1 | 8 | 1 | 1 | 1 |
| GCK | ||||||||||||||||||||||||
| GDH | 42 | 16 | 43 | 58 | 21 | 46 | 58 | 249 | 108 | 292 | 50 | 129 | 56 | 69 | 17 | 99 | 48 | 89 | 53 | 31 | 50 | 82 | 91 | 25 |
| GNA | 4 | 5 | 3 | 3 | 8 | 10 | 17 | 20 | 11 | 8 | 3 | 6 | 9 | 2 | 2 | 3 | 4 | 9 | 10 | 11 | 27 | 11 | 6 | 4 |
| GUA | 4 | 7 | 3 | 1 | 2 | 2 | 3 | 3 | 2 | 4 | 2 | 1 | 2 | 1 | 1 | 1 | 1 | 2 | 3 | 1 | 4 | 3 | 1 | 5 |
| GUI | 1 | 1 | 2 | 2 | 1 | 4 | 2 | 6 | 4 | 2 | 6 | 11 | 3 | 1 | 2 | 5 | 3 | 4 | 8 | 2 | 3 | 3 | 3 | 2 |
| GZH | 12 | 8 | 2 | 3 | 4 | 11 | 2 | 6 | 1 | 1 | 2 | 1 | 1 | 1 | 0 | 0 | 1 | 1 | 1 | 1 | 1 | 2 | 3 | 4 |
| HAD | 1 | 1 | 3 | 1 | 2 | 4 | 2 | 5 | 3 | 4 | 17 | 6 | 4 | 9 | 7 | 6 | 7 | 4 | 5 | 2 | 19 | 6 | 3 | 2 |
| HBK | 2 | 3 | 4 | 5 | 7 | 5 | 3 | 5 | 12 | 4 | 4 | 5 | 6 | 6 | 10 | 4 | 4 | 4 | 3 | 5 | 6 | 5 | 3 | 5 |
| HER | 3 | 3 | 4 | 4 | 8 | 7 | 13 | 8 | 7 | 5 | 16 | 5 | 8 | 4 | 3 | 3 | 6 | 13 | 9 | 8 | 52 | 23 | 7 | 5 |
| HLP | 3 | 1 | 2 | 4 | 5 | 3 | 6 | 8 | 9 | 5 | 4 | 4 | 12 | 3 | 7 | 8 | 9 | 5 | 7 | 4 | 28 | 9 | 4 | 4 |
| HON | 7 | 2 | 1 | 1 | 2 | 3 | 9 | 12 | 4 | 1 | 1 | 1 | 1 | 1 | 1 | 3 | 6 | 4 | 10 | 8 | 6 | 4 | 2 | 5 |
| HRB | 1 | 1 | 1 | 2 | 2 | 3 | 1 | 4 | 8 | 5 | 1 | 6 | 4 | 4 | 3 | 4 | 5 | 3 | 2 | 1 | 10 | 2 | 1 | 1 |
| HRN | 44 | 18 | 17 | 37 | 136 | 65 | 95 | 163 | 216 | 76 | 26 | 59 | 21 | 52 | 29 | 47 | 57 | 79 | 78 | 38 | 272 | 186 | 51 | 109 |
| HUA | 2 | 1 | 2 | 2 | 2 | 3 | 5 | 2 | 3 | 2 | 1 | 2 | 6 | 3 | 3 | 4 | 3 | 3 | 2 | 4 | 2 | 2 | 3 | 1 |
| HYB | ||||||||||||||||||||||||
| IPM | ||||||||||||||||||||||||
| IQA | 35 | 37 | 140 | 119 | 120 | 72 | 59 | 250 | 139 | 145 | 101 | 46 | 36 | 42 | 51 | 23 | 58 | 354 | 126 | 155 | 149 | 142 | 50 | 57 |
| IRT | 1 | 4 | 5 | 2 | 3 | 5 | 4 | 9 | 1 | 2 | 2 | 4 | 3 | 1 | 1 | 1 | 0 | 1 | 2 | 1 | 7 | 3 | 3 | 3 |
| IZN | ||||||||||||||||||||||||
| KAK | 3 | 3 | 2 | 4 | 7 | 5 | 7 | 11 | 4 | 4 | 3 | 3 | 3 | 2 | 2 | 2 | 2 | 5 | 9 | 7 | 7 | 3 | 7 | 2 |
| KDU | 4 | 9 | 3 | 2 | 6 | 2 | 2 | 5 | 7 | 4 | 1 | 1 | 1 | 1 | 1 | 0 | 1 | 3 | 4 | 1 | 4 | 1 | 4 | 2 |
| KMH | ||||||||||||||||||||||||
| KNY | 2 | 2 | 6 | 3 | 4 | 5 | 6 | 10 | 5 | 6 | 3 | 1 | 3 | 2 | 1 | 2 | 2 | 4 | 7 | 4 | 5 | 3 | 9 | 4 |
| KOU | 1 | 1 | 4 | 3 | 7 | 4 | 5 | 12 | 6 | 3 | 9 | 3 | 11 | 3 | 6 | 2 | 6 | 9 | 4 | 3 | 12 | 3 | 5 | 2 |
| LER | 2 | 2 | 2 | 7 | 9 | 7 | 11 | 10 | 9 | 10 | 4 | 2 | 3 | 3 | 7 | 7 | 18 | 16 | 5 | 11 | 66 | 19 | 2 | 7 |
| LRM | 8 | 3 | 10 | 10 | 11 | 6 | 7 | 27 | 10 | 15 | 4 | 2 | 8 | 1 | 5 | 3 | 2 | 12 | 12 | 3 | 9 | 10 | 9 | 9 |
| LVV | 4 | 5 | 5 | 6 | 6 | 5 | 7 | 10 | 10 | 8 | 3 | 11 | 9 | 10 | 6 | 6 | 11 | 8 | 7 | 7 | 16 | 5 | 5 | 7 |
| LYC | ||||||||||||||||||||||||
| LZH | 1 | 5 | 12 | 5 | 2 | 6 | 4 | 7 | 4 | 4 | 2 | 1 | 1 | 1 | 1 | 1 | 1 | 2 | 2 | 2 | 5 | 2 | 4 | 4 |
| MAB | ||||||||||||||||||||||||
| MAW | ||||||||||||||||||||||||
| MBO | 2 | 1 | 1 | 3 | 1 | 2 | 11 | 11 | 6 | 20 | 19 | 10 | 10 | 5 | 4 | 2 | 16 | 10 | 2 | 7 | 4 | 5 | 1 | 2 |
| MCQ | 6 | 11 | 7 | 10 | 19 | 56 | 99 | 219 | 85 | 64 | 57 | 127 | 79 | 30 | 9 | 10 | 23 | 52 | 35 | 21 | 22 | 56 | 17 | 22 |
| MEA | 10 | 10 | 16 | 21 | 43 | 28 | 484 | 451 | 87 | 80 | 37 | 17 | 9 | 10 | 12 | 9 | 4 | 4 | 9 | 12 | 38 | 22 | 7 | 16 |
| MGD | ||||||||||||||||||||||||
| MID | ||||||||||||||||||||||||
| MMB | 1 | 3 | 2 | 3 | 3 | 2 | 3 | 9 | 2 | 1 | 1 | 2 | 1 | 1 | 1 | 0 | 1 | 3 | 2 | 3 | 7 | 6 | 2 | 2 |
| NAQ | 17 | 53 | 72 | 120 | 68 | 204 | 204 | 384 | 122 | 120 | 15 | 16 | 25 | 20 | 26 | 59 | 31 | 46 | 77 | 150 | 139 | 181 | 142 | 151 |
| NCK | 1 | 0 | 2 | 1 | 2 | 2 | 2 | 3 | 9 | 3 | 1 | 4 | 5 | 3 | 3 | 4 | 5 | 3 | 1 | 1 | 6 | 1 | 1 | 1 |
| NEW | 2 | 3 | 2 | 6 | 7 | 2 | 50 | 46 | 12 | 13 | 8 | 1 | 1 | 3 | 1 | |||||||||
| NGK | 2 | 1 | 3 | 2 | 3 | 3 | 5 | 5 | 7 | 7 | 8 | 7 | 8 | 5 | 3 | 4 | 7 | 8 | 2 | 3 | 20 | 2 | 3 | 3 |
| NUR | 6 | 2 | 2 | 3 | 8 | 4 | 3 | 10 | 12 | 6 | 2 | 3 | 12 | 3 | 2 | 9 | 12 | 3 | 13 | 7 | 87 | 37 | 5 | 14 |
| NVS | 6 | 4 | 3 | 5 | 3 | 5 | 8 | 6 | 8 | 9 | 7 | 8 | 3 | 8 | 4 | 3 | 5 | 5 | 5 | 9 | 8 | 6 | 4 | 5 |
| OTT | 4 | 2 | 11 | 9 | 5 | 11 | 40 | 42 | 27 | 23 | 2 | 2 | 3 | 5 | 4 | 5 | 9 | 10 | 5 | 10 | 16 | 18 | 3 | 9 |
| PAF | 1 | 2 | 3 | 2 | 3 | 4 | 7 | 3 | 3 | 1 | 4 | 3 | 2 | 3 | 3 | 1 | 3 | 9 | 7 | 23 | 33 | 25 | 6 | 9 |
| PAG | ||||||||||||||||||||||||
| PEG | ||||||||||||||||||||||||
| PHU | 9 | 9 | 4 | 3 | 7 | 10 | 5 | 9 | 5 | 4 | 2 | 1 | 2 | 2 | 1 | 1 | 2 | 4 | 4 | 3 | 8 | 3 | 4 | 6 |
| PPT | 4 | 4 | 8 | 6 | 2 | 4 | 10 | 6 | 3 | 2 | 2 | 1 | 1 | 1 | 1 | 1 | 1 | 4 | 2 | 4 | 6 | 8 | 2 | 3 |
| PST | ||||||||||||||||||||||||
| QSB | 1 | 1 | 3 | 1 | 4 | 1 | 4 | 13 | 11 | 3 | 8 | 9 | 3 | 3 | 3 | 2 | 1 | 3 | 2 | 2 | 9 | 5 | 1 | 2 |
| RES | 17 | 12 | 8 | 13 | 14 | 23 | 37 | 21 | 23 | 15 | 16 | 25 | 27 | 31 | 86 | 111 | 166 | 124 | 154 | 230 | 82 | 50 | 103 | 53 |
| SBA | 13 | 16 | 10 | 33 | 32 | 40 | 14 | 91 | 54 | 25 | 26 | 19 | 16 | 21 | 27 | 12 | 15 | 16 | 13 | 23 | 25 | 21 | 36 | 19 |
| SFS | ||||||||||||||||||||||||
| SHU | ||||||||||||||||||||||||
| SIT | 2 | 7 | 2 | 4 | 23 | 15 | 96 | 100 | 50 | 33 | 6 | 20 | 13 | 13 | 5 | 6 | 8 | 11 | 3 | 8 | 18 | 14 | 10 | 7 |
| SJG | 1 | 1 | 2 | 3 | 2 | 3 | 5 | 6 | 4 | 3 | 2 | 3 | 3 | 2 | 3 | 1 | 1 | 3 | 7 | 0 | 2 | 4 | 1 | |
| SOD | 27 | 4 | 4 | 12 | 19 | 11 | 17 | 30 | 27 | 10 | 8 | 14 | 9 | 11 | 8 | 7 | 25 | 29 | 24 | 25 | 213 | 154 | 31 | 81 |
| SPT | 1 | 1 | 1 | 1 | 2 | 2 | 4 | 1 | 6 | 12 | 5 | 4 | 1 | 5 | 8 | 8 | 6 | 4 | 4 | 2 | 3 | 7 | 1 | 1 |
| STJ | 3 | 5 | 9 | 16 | 6 | 11 | 27 | 30 | 24 | 22 | 9 | 21 | 9 | 11 | 9 | 4 | 13 | 6 | 20 | 14 | 20 | 22 | 7 | 10 |
| SUA | 1 | 1 | 2 | 1 | 3 | 2 | 2 | 4 | 2 | 8 | 6 | 3 | 2 | 2 | 3 | 3 | 2 | 2 | 2 | 3 | 9 | 2 | 2 | 2 |
| TAM | 1 | 0 | 0 | 1 | 4 | 2 | 6 | 9 | 2 | 2 | 2 | 1 | 3 | 3 | 2 | 3 | 2 | 1 | 1 | 1 | 3 | 1 | 1 | 1 |
| TAN | 1 | 0 | 1 | 2 | 1 | 3 | 8 | 3 | 3 | 2 | 1 | 2 | 2 | 5 | 1 | 0 | 1 | 1 | 2 | 1 | 4 | 2 | 0 | 1 |
| TDC | ||||||||||||||||||||||||
| THL | 8 | 13 | 11 | 12 | 8 | 23 | 24 | 26 | 29 | 29 | 19 | 19 | 64 | 78 | 94 | 122 | 124 | 94 | 34 | 61 | 28 | 41 | 34 | 18 |
| THY | 1 | 0 | 2 | 1 | 1 | 1 | 1 | 4 | 9 | 4 | 1 | 5 | 4 | 3 | 4 | 4 | 5 | 3 | 1 | 1 | 8 | 1 | 1 | 1 |
| TRW | 1 | 1 | 3 | 1 | 4 | 2 | 2 | 4 | 5 | 1 | 2 | 2 | 2 | 4 | 8 | 5 | 3 | 7 | 7 | 4 | 2 | 1 | 1 | 1 |
| TSU | 1 | 1 | 1 | 1 | 2 | 4 | 12 | 6 | 6 | 10 | 5 | 2 | 3 | 2 | 9 | 9 | 2 | 2 | 3 | 2 | 9 | 5 | 2 | 1 |
| TUC | 3 | 1 | 1 | 1 | 1 | 1 | 1 | 4 | 1 | 1 | 1 | 1 | 3 | 1 | 10 | 18 | 3 | 1 | 8 | 9 | 6 | 5 | 2 | 1 |
| UPS | 5 | 1 | 3 | 2 | 7 | 2 | 2 | 6 | 9 | 3 | 3 | 2 | 13 | 1 | 3 | 6 | 14 | 3 | 10 | 6 | 66 | 31 | 6 | 8 |
| VAL | 3 | 2 | 5 | 2 | 3 | 7 | 5 | 8 | 8 | 6 | 17 | 12 | 2 | 10 | 12 | 7 | 9 | 4 | 7 | 5 | 37 | 12 | 5 | 7 |
| VIC | 4 | 5 | 5 | 5 | 5 | 4 | 24 | 36 | 17 | 10 | 5 | 1 | 3 | 4 | 4 | 8 | 14 | 6 | 7 | 3 | 5 | 7 | 2 | 7 |
| VSS | 1 | 1 | 3 | 2 | 3 | 3 | 2 | 3 | 2 | 5 | 3 | 5 | 9 | 4 | 8 | 2 | 4 | 6 | 2 | 4 | 11 | 4 | 2 | 2 |
| WNG | 1 | 1 | 1 | 3 | 2 | 2 | 5 | 6 | 5 | 8 | 9 | 2 | 13 | 9 | 6 | 5 | 8 | 3 | 6 | 3 | 29 | 6 | 5 | 5 |
| YKC | 10 | 9 | 57 | 39 | 215 | 184 | 469 | 388 | 93 | 67 | 64 | 105 | 91 | 37 | 19 | 10 | 19 | 64 | 43 | 49 | 28 | 43 | 21 | 33 |
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