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 | 9 | 10 | 11 | 24 | 32 | 37 | 54 | 47 | 62 | 10 | 14 | 47 | 39 | 7 | 15 | 31 | 13 | 3 | 3 | 7 | 10 | 11 | 9 |
| ABG | 8 | 7 | 12 | 11 | 6 | |||||||||||||||||||
| ABK | 15 | 15 | 23 | 23 | 19 | 19 | 10 | 12 | 8 | 31 | 35 | 19 | 122 | 121 | 50 | 197 | 189 | 32 | 12 | 21 | 108 | 222 | 76 | 79 |
| AIA | 3 | 9 | 11 | 17 | 8 | 9 | 4 | 5 | 21 | 11 | 3 | 13 | 28 | 16 | 6 | 12 | 7 | 10 | 8 | 9 | 7 | 20 | 21 | 8 |
| AMS | 2 | 4 | 4 | 5 | 5 | 8 | 7 | 9 | 10 | 11 | 15 | 8 | 24 | 13 | 14 | 13 | 18 | 4 | 5 | 3 | 9 | 16 | 17 | 6 |
| API | ||||||||||||||||||||||||
| AQU | 2 | 3 | 2 | 3 | 4 | 4 | 3 | 5 | 23 | 7 | 10 | 6 | 19 | 5 | 6 | 12 | 19 | 7 | 3 | 2 | 5 | 7 | 8 | 6 |
| ARS | ||||||||||||||||||||||||
| ASC | 2 | 3 | 4 | 6 | 5 | 7 | 5 | 6 | 9 | 6 | 2 | 15 | 20 | 20 | 16 | 10 | 6 | 8 | 3 | 1 | 5 | 10 | 4 | 8 |
| ASP | 8 | 10 | 6 | 8 | 6 | 5 | 6 | 5 | 17 | 8 | 10 | 6 | 10 | 17 | 9 | 3 | 2 | 3 | 2 | 4 | 1 | 4 | 5 | 4 |
| BDV | 2 | 3 | 1 | 2 | 3 | 3 | 2 | 6 | 19 | 11 | 3 | 6 | 10 | 13 | 6 | 12 | 9 | 4 | 2 | 1 | 4 | 7 | 7 | 4 |
| BEL | 2 | 4 | 6 | 4 | 4 | 4 | 4 | 6 | 30 | 15 | 9 | 9 | 15 | 18 | 10 | 15 | 14 | 9 | 5 | 2 | 11 | 23 | 6 | 6 |
| BFE | 4 | 8 | 9 | 7 | 4 | 5 | 4 | 5 | 33 | 18 | 9 | 12 | 25 | 31 | 19 | 23 | 24 | 16 | 8 | 4 | 15 | 43 | 11 | 12 |
| BFO | ||||||||||||||||||||||||
| BLC | 14 | 33 | 21 | 54 | 12 | 122 | 107 | 18 | 164 | 186 | 189 | 55 | 91 | 325 | 244 | 211 | 173 | 48 | 55 | 41 | 192 | 103 | 117 | 75 |
| BMT | 8 | 9 | 3 | 4 | 13 | 8 | 9 | 6 | 22 | 14 | 6 | 6 | 14 | 17 | 11 | 5 | 5 | 5 | 2 | 2 | 3 | 9 | 6 | 5 |
| BNG | 4 | 5 | 4 | 5 | 8 | 13 | 16 | 30 | 16 | 12 | 5 | 5 | 44 | 32 | 13 | 17 | 26 | 12 | 3 | 2 | 5 | 5 | 10 | 10 |
| BOU | 5 | 5 | 7 | 3 | 3 | 6 | 3 | 3 | 5 | 12 | 4 | 13 | 19 | 3 | 4 | 14 | 8 | 3 | 4 | 4 | 11 | 4 | 18 | 4 |
| BOX | 2 | 6 | 3 | 4 | 1 | 6 | 8 | 5 | 20 | 13 | 5 | 24 | 35 | 25 | 15 | 24 | 40 | 13 | 4 | 5 | 5 | 33 | 7 | 17 |
| BRW | 13 | 28 | 17 | 51 | 34 | 51 | 15 | 21 | 51 | 125 | 64 | 48 | 133 | 221 | 197 | 56 | 152 | 127 | 61 | 47 | 44 | 83 | 56 | 38 |
| BSL | 3 | 6 | 7 | 8 | 7 | 12 | 4 | 4 | 8 | 9 | 13 | 23 | 42 | 4 | 5 | 14 | 10 | 7 | 7 | 7 | 10 | 14 | 24 | 9 |
| CBB | 22 | 33 | 39 | 41 | 16 | 37 | 41 | 21 | 114 | 83 | 87 | 25 | 84 | 332 | 63 | 57 | 277 | 101 | 154 | 144 | 142 | 109 | 159 | 127 |
| CLF | 2 | 2 | 2 | 2 | 5 | 5 | 3 | 2 | 21 | 7 | 5 | 7 | 8 | 13 | 8 | 15 | 13 | 6 | 3 | 3 | 4 | 6 | 8 | 5 |
| CMO | 5 | 16 | 19 | 31 | 19 | 48 | 59 | 12 | 145 | 312 | 79 | 40 | 234 | 176 | 391 | 260 | 79 | 160 | 15 | 18 | 27 | 34 | 46 | 29 |
| CNB | 4 | 5 | 3 | 8 | 11 | 4 | 2 | 5 | 11 | 8 | 4 | 2 | 5 | 18 | 8 | 1 | 3 | 2 | 4 | 3 | 2 | 6 | 9 | 7 |
| CSY | ||||||||||||||||||||||||
| CTA | 7 | 7 | 13 | 10 | 4 | 7 | 7 | 6 | 23 | 8 | 15 | 7 | 12 | 26 | 13 | 3 | 2 | 3 | 2 | 5 | 2 | 5 | 6 | 4 |
| CZT | 2 | 2 | 4 | 4 | 3 | 4 | 5 | 8 | 7 | 4 | 5 | 8 | 6 | 8 | 7 | 7 | 10 | 3 | 2 | 2 | 5 | 6 | 3 | 6 |
| DLR | 3 | 7 | 7 | 9 | 8 | 16 | 5 | 6 | 21 | 19 | 11 | 19 | 24 | 7 | 5 | 20 | 10 | 5 | 6 | 7 | 10 | 14 | 21 | 13 |
| DOU | 3 | 4 | 3 | 5 | 7 | 5 | 4 | 4 | 19 | 8 | 8 | 7 | 10 | 20 | 9 | 17 | 15 | 6 | 3 | 3 | 4 | 8 | 11 | 6 |
| DRV | 61 | 116 | 179 | 247 | 97 | 52 | 38 | 25 | 47 | 36 | 24 | 29 | 235 | 180 | 82 | 31 | 94 | 32 | 43 | 37 | 52 | 68 | 97 | 69 |
| EBR | 5 | 5 | 6 | 6 | 8 | 11 | 8 | 5 | 27 | 10 | 8 | 12 | 29 | 10 | 10 | 23 | 40 | 13 | 8 | 7 | 12 | 14 | 13 | 12 |
| ESK | 2 | 4 | 1 | 2 | 4 | 3 | 1 | 2 | 13 | 11 | 6 | 6 | 8 | 27 | 15 | 18 | 12 | 9 | 7 | 2 | 3 | 9 | 11 | 5 |
| EUA | ||||||||||||||||||||||||
| EYR | 3 | 8 | 6 | 14 | 8 | 6 | 6 | 5 | 21 | 22 | 6 | 6 | 13 | 18 | 18 | 4 | 5 | 6 | 7 | 7 | 6 | 6 | 4 | 4 |
| FCC | 13 | 18 | 40 | 81 | 131 | 234 | 88 | 45 | 259 | 412 | 275 | 50 | 219 | 543 | 425 | 103 | 63 | 28 | 34 | 28 | 38 | 48 | 32 | 24 |
| FRD | 1 | 2 | 4 | 3 | 3 | 3 | 1 | 4 | 5 | 5 | 3 | 4 | 22 | 7 | 3 | 7 | 11 | 5 | 4 | 9 | 15 | 13 | 10 | 4 |
| FRN | 5 | 9 | 6 | 4 | 4 | 11 | 3 | 3 | 24 | 26 | 11 | 12 | 11 | 5 | 3 | 8 | 11 | 5 | 9 | 5 | 4 | 9 | 21 | 16 |
| FUR | 2 | 3 | 2 | 2 | 2 | 4 | 2 | 4 | 21 | 10 | 2 | 3 | 8 | 14 | 6 | 13 | 10 | 5 | 2 | 2 | 5 | 7 | 7 | 5 |
| GCK | ||||||||||||||||||||||||
| GDH | 50 | 19 | 18 | 22 | 31 | 33 | 23 | 155 | 75 | 58 | 124 | 147 | 344 | 117 | 360 | 163 | 190 | 195 | 92 | 49 | 31 | 52 | 66 | 68 |
| GNA | 5 | 5 | 15 | 24 | 15 | 8 | 13 | 5 | 13 | 12 | 9 | 4 | 47 | 38 | 8 | 12 | 28 | 5 | 7 | 8 | 6 | 12 | 20 | 7 |
| GUA | 17 | 11 | 23 | 15 | 10 | 13 | 5 | 11 | 20 | 7 | 11 | 5 | 10 | 25 | 9 | 3 | 2 | 5 | 5 | 6 | 8 | 8 | 23 | 16 |
| GUI | 3 | 5 | 3 | 6 | 7 | 7 | 4 | 4 | 12 | 9 | 6 | 15 | 29 | 16 | 14 | 10 | 16 | 7 | 6 | 3 | 4 | 9 | 7 | 9 |
| GZH | 3 | 9 | 4 | 11 | 11 | 8 | 8 | 7 | 34 | 18 | 11 | 10 | 21 | 22 | 13 | 5 | 11 | 7 | 2 | 4 | 2 | 11 | 4 | 6 |
| HAD | 3 | 4 | 4 | 4 | 4 | 5 | 4 | 3 | 20 | 6 | 9 | 15 | 11 | 21 | 15 | 17 | 14 | 6 | 5 | 3 | 8 | 13 | 12 | 6 |
| HBK | 3 | 4 | 5 | 5 | 5 | 8 | 5 | 7 | 15 | 12 | 9 | 6 | 16 | 9 | 10 | 10 | 8 | 6 | 4 | 3 | 6 | 4 | 4 | 6 |
| HER | 2 | 2 | 5 | 2 | 5 | 8 | 4 | 8 | 8 | 13 | 11 | 13 | 19 | 18 | 11 | 5 | 4 | 8 | 3 | 2 | 6 | 9 | 5 | 7 |
| HLP | 4 | 7 | 5 | 4 | 4 | 4 | 4 | 4 | 29 | 15 | 7 | 19 | 23 | 27 | 14 | 18 | 16 | 13 | 6 | 3 | 8 | 26 | 11 | 12 |
| HON | 2 | 6 | 4 | 6 | 3 | 5 | 5 | 4 | 4 | 8 | 12 | 8 | 15 | 10 | ||||||||||
| HRB | 2 | 3 | 2 | 3 | 4 | 4 | 4 | 6 | 19 | 9 | 3 | 8 | 9 | 10 | 7 | 12 | 8 | 4 | 2 | 2 | 6 | 9 | 7 | 4 |
| HRN | 28 | 48 | 69 | 89 | 37 | 107 | 41 | 104 | 189 | 211 | 202 | 109 | 336 | 38 | 80 | 77 | 190 | 96 | 27 | 39 | 51 | 215 | 188 | 99 |
| HUA | 3 | 9 | 10 | 12 | 7 | 22 | 3 | 10 | 12 | 15 | 12 | 20 | 22 | 38 | 26 | 63 | 66 | 37 | 30 | 25 | 34 | 50 | 8 | 11 |
| HYB | ||||||||||||||||||||||||
| IPM | ||||||||||||||||||||||||
| IQA | 15 | 54 | 17 | 38 | 35 | 29 | 27 | 59 | 50 | 163 | 185 | 108 | 192 | 129 | 380 | 188 | 65 | 106 | 90 | 68 | 183 | 33 | 55 | 34 |
| IRT | 7 | 6 | 4 | 11 | 3 | 2 | 6 | 18 | 17 | 10 | 8 | 6 | 12 | 20 | 9 | 7 | 6 | 3 | 3 | 2 | 2 | 5 | 3 | 4 |
| IZN | ||||||||||||||||||||||||
| KAK | 11 | 7 | 14 | 13 | 14 | 5 | 8 | 11 | 31 | 16 | 19 | 11 | 16 | 28 | 15 | 7 | 5 | 6 | 4 | 3 | 5 | 9 | 6 | 14 |
| KDU | 4 | 6 | 8 | 11 | 7 | 11 | 4 | 8 | 25 | 12 | 16 | 10 | 15 | 30 | 17 | 5 | 4 | 5 | 3 | 6 | 3 | 10 | 12 | 4 |
| KMH | ||||||||||||||||||||||||
| KNY | 6 | 9 | 7 | 9 | 13 | 8 | 13 | 11 | 38 | 20 | 21 | 13 | 17 | 28 | 17 | 7 | 3 | 6 | 3 | 3 | 4 | 7 | 5 | 11 |
| KOU | 0 | 10 | 5 | 5 | 8 | 9 | 14 | 20 | 3 | 9 | ||||||||||||||
| LER | 2 | 5 | 5 | 6 | 7 | 6 | 3 | 7 | 9 | 21 | 7 | 6 | 21 | 46 | 27 | 25 | 49 | 33 | 14 | 7 | 5 | 20 | 15 | 7 |
| LRM | 7 | 14 | 21 | 22 | 8 | 8 | 10 | 14 | 18 | 28 | 20 | 9 | 26 | 46 | 27 | 14 | 10 | 4 | 4 | 6 | 5 | 9 | 17 | 14 |
| LVV | 3 | 5 | 7 | 4 | 6 | 5 | 6 | 7 | 26 | 11 | 9 | 8 | 11 | 13 | 10 | 14 | 13 | 9 | 5 | 5 | 12 | 21 | 7 | 6 |
| LYC | ||||||||||||||||||||||||
| LZH | 8 | 12 | 4 | 6 | 8 | 8 | 10 | 6 | 22 | 11 | 9 | 6 | 19 | 17 | 13 | 6 | 11 | 7 | 3 | 2 | 3 | 10 | 5 | 6 |
| MAB | ||||||||||||||||||||||||
| MAW | ||||||||||||||||||||||||
| MBO | 4 | 6 | 3 | 5 | 7 | 8 | 6 | 12 | 7 | 11 | 7 | 22 | 37 | 27 | 19 | 10 | 14 | 9 | 10 | 4 | 10 | 15 | 7 | 11 |
| MCQ | 7 | 20 | 19 | 41 | 31 | 27 | 22 | 13 | 176 | 122 | 114 | 49 | 324 | 219 | 230 | 229 | 54 | 29 | 31 | 8 | 23 | 33 | 55 | 19 |
| MEA | 5 | 25 | 27 | 23 | 12 | 70 | 43 | 15 | 445 | 343 | 199 | 23 | 307 | 158 | 114 | 56 | 90 | 23 | 13 | 13 | 22 | 19 | 45 | 37 |
| MGD | ||||||||||||||||||||||||
| MID | ||||||||||||||||||||||||
| MMB | 5 | 4 | 9 | 13 | 9 | 3 | 10 | 4 | 18 | 13 | 10 | 7 | 15 | 26 | 10 | 8 | 3 | 4 | 3 | 2 | 5 | 8 | 11 | 10 |
| NAQ | 37 | 100 | 146 | 57 | 121 | 75 | 49 | 56 | 102 | 86 | 121 | 34 | 25 | 104 | 94 | 54 | 85 | 80 | 52 | 40 | 37 | 137 | 53 | 196 |
| NCK | 2 | 3 | 2 | 2 | 3 | 3 | 3 | 5 | 18 | 8 | 2 | 8 | 8 | 10 | 7 | 12 | 9 | 4 | 2 | 2 | 4 | 6 | 8 | 6 |
| NEW | ||||||||||||||||||||||||
| NGK | 1 | 2 | 1 | 1 | 2 | 2 | 1 | 5 | 19 | 19 | 4 | 7 | 17 | 20 | 6 | 12 | 12 | 5 | 2 | 1 | 1 | 5 | 6 | 3 |
| NUR | 2 | 7 | 8 | 4 | 4 | 6 | 7 | 10 | 22 | 16 | 7 | 24 | 45 | 36 | 11 | 55 | 85 | 23 | 4 | 8 | 11 | 44 | 12 | 25 |
| NVS | 3 | 4 | 4 | 5 | 6 | 12 | 7 | 15 | 13 | 8 | 5 | 12 | 15 | 14 | 8 | 6 | 5 | 8 | 4 | 4 | 7 | 10 | 5 | 8 |
| OTT | 3 | 5 | 3 | 10 | 4 | 11 | 8 | 7 | 19 | 19 | 15 | 7 | 25 | 15 | 10 | 10 | 20 | 11 | 7 | 11 | 28 | 30 | 25 | 10 |
| PAF | 0 | 1 | 3 | 2 | 2 | 6 | 3 | 3 | 5 | 11 | 10 | 10 | 6 | 38 | 13 | 40 | 30 | 28 | 15 | 8 | 9 | 20 | 12 | 9 |
| PAG | ||||||||||||||||||||||||
| PEG | ||||||||||||||||||||||||
| PHU | 5 | 16 | 11 | 18 | 17 | 13 | 10 | 10 | 43 | 18 | 12 | 11 | 31 | 26 | 18 | 6 | 17 | 9 | 3 | 5 | 2 | 17 | 5 | 7 |
| PPT | 6 | 6 | 6 | 9 | 3 | 8 | 4 | 7 | 13 | 20 | 5 | 9 | 10 | 7 | 6 | 5 | 7 | 5 | 6 | 9 | 6 | 17 | 4 | 10 |
| PST | ||||||||||||||||||||||||
| QSB | 2 | 4 | 5 | 3 | 4 | 7 | 4 | 4 | 18 | 10 | 10 | 7 | 28 | 8 | 7 | 8 | 22 | 9 | 3 | 3 | 7 | 8 | 8 | 5 |
| RES | 39 | 51 | 24 | 21 | 33 | 19 | 16 | 10 | 46 | 34 | 37 | 56 | 85 | 51 | 37 | 43 | 119 | 172 | 187 | 102 | 60 | 30 | 34 | 48 |
| SBA | 40 | 32 | 29 | 22 | 31 | 30 | 19 | 25 | 19 | 94 | 64 | 47 | 63 | 150 | 79 | 42 | 87 | 29 | 48 | 49 | 65 | 39 | 60 | 51 |
| SFS | ||||||||||||||||||||||||
| SHU | ||||||||||||||||||||||||
| SIT | 4 | 26 | 24 | 22 | 14 | 12 | 4 | 4 | 33 | 113 | 79 | 15 | 279 | 106 | 125 | 51 | 98 | 40 | 15 | 8 | 14 | 10 | 18 | 5 |
| SJG | 2 | 4 | 5 | 6 | 3 | 10 | 2 | 3 | 8 | 8 | 11 | 9 | 17 | 6 | 13 | 4 | 8 | 7 | 2 | 2 | 6 | 14 | 8 | 9 |
| SOD | 9 | 12 | 16 | 13 | 13 | 9 | 5 | 11 | 9 | 21 | 22 | 24 | 126 | 55 | 41 | 97 | 51 | 51 | 14 | 33 | 190 | 111 | 131 | 80 |
| SPT | 3 | 3 | 2 | 2 | 5 | 5 | 3 | 4 | 16 | 6 | 4 | 7 | 18 | 6 | 9 | 10 | 19 | 9 | 2 | 2 | 4 | 4 | 8 | 7 |
| STJ | 7 | 8 | 9 | 28 | 13 | 15 | 7 | 12 | 9 | 20 | 8 | 28 | 24 | 33 | 20 | 25 | 26 | 30 | 16 | 16 | 32 | 31 | 25 | 16 |
| SUA | ||||||||||||||||||||||||
| TAM | 3 | 5 | 3 | 3 | 7 | 7 | 6 | 14 | 10 | 8 | 3 | 11 | 34 | 24 | 10 | 15 | 18 | 12 | 5 | 4 | 5 | 7 | 8 | 10 |
| TAN | ||||||||||||||||||||||||
| TDC | ||||||||||||||||||||||||
| THL | 17 | 28 | 29 | 16 | 20 | 16 | 18 | 48 | 59 | 49 | 17 | 124 | 157 | 17 | 49 | 59 | 164 | 53 | 128 | 56 | 21 | 43 | 27 | 16 |
| THY | 2 | 3 | 2 | 2 | 3 | 4 | 2 | 5 | 19 | 9 | 4 | 7 | 10 | 8 | 6 | 12 | 9 | 4 | 2 | 1 | 5 | 7 | 7 | 5 |
| TRW | 2 | 5 | 6 | 9 | 5 | 10 | 2 | 3 | 4 | 4 | 8 | 8 | 19 | 8 | 18 | 5 | 6 | 5 | 7 | 4 | 3 | 12 | 10 | 6 |
| TSU | 1 | 2 | 3 | 2 | 2 | 5 | 5 | 3 | 15 | 18 | 4 | 11 | 18 | 11 | 5 | 6 | 7 | 6 | 1 | 1 | 2 | 2 | 4 | 4 |
| TUC | 5 | 6 | 5 | 5 | 4 | 12 | 3 | 4 | 21 | 21 | 10 | 12 | 10 | 4 | 5 | 16 | 16 | 10 | 2 | 5 | 6 | 9 | 20 | 10 |
| UPS | 2 | 6 | 5 | 3 | 2 | 5 | 2 | 8 | 19 | 16 | 5 | 19 | 37 | 43 | 9 | 44 | 71 | 24 | 6 | 5 | 9 | 30 | 12 | 20 |
| VAL | 3 | 4 | 8 | 8 | 3 | 7 | 5 | 5 | 17 | 12 | 7 | 21 | 6 | 11 | 23 | 13 | 14 | 5 | 4 | 3 | 12 | 24 | 13 | 4 |
| VIC | 7 | 19 | 17 | 9 | 5 | 11 | 3 | 5 | 11 | 53 | 21 | 16 | 49 | 28 | 13 | 10 | 10 | 10 | 10 | 8 | 10 | 9 | 23 | 12 |
| VSS | 2 | 3 | 5 | 7 | 4 | 8 | 3 | 3 | 6 | 11 | 3 | 11 | 14 | 4 | 9 | 10 | 15 | 7 | 10 | 3 | 6 | 13 | 5 | 9 |
| WNG | 4 | 6 | 6 | 6 | 2 | 3 | 3 | 3 | 28 | 18 | 5 | 7 | 19 | 27 | 15 | 13 | 13 | 12 | 8 | 4 | 14 | 35 | 10 | 11 |
| YKC | 14 | 26 | 28 | 59 | 57 | 147 | 95 | 41 | 261 | 444 | 119 | 29 | 272 | 660 | 675 | 460 | 370 | 114 | 34 | 29 | 37 | 62 | 37 | 29 |
- Date modified: