| Observatory | Commencing time | Ending time | Geomagnetic field | Geoelectric field | |||||
| Type (sudden/gradual) | Amplitude of abrupt onset H (nT) g(nT) |
Range | Range | ||||||
| Hour Minute (UTC) |
Date Time (UTC) |
Horizontal component H (nT) |
Declination D (arcminute) |
Vertical component Z (nT) |
East-west component (mV/km) |
North-south component (mV/km) |
|||
| Kakioka | 16.8h m | C | gradual | 146 | 9.5 | 66 | |||
| Memambetsu | 16.8h m | C | gradual | 158 | 12.7 | 40 | |||
| Kanoya | 16.8h m | C | gradual | 152 | 7.9 | 72 | |||
(*) Time is in UTC (Universal Time Coordinated).
(*) Time is given in 1-minute increments for the sudden commencement type and in 0.1-hour increments for the gradual commencement type.
(*) "-1" is displayed for the range, when it is unknown due to missing measurements, etc.
(*) The range may not be determined for a storm which is followed by the next one before its ending (the ending time is indicated by "C").
Plot of Kakioka 1-minute geomagnetic field for the geomagnetic storm on 5 November 2025.
Plot of Memambetsu 1-minute geomagnetic field for the geomagnetic storm on 5 November 2025.
Plot of Kanoya 1-minute geomagnetic field for during the geomagnetic storm on 5 November 2025.
*) Plot diagram opens in a separate window.
| Observatory | Commencing time | Ending time | Geomagnetic field | Geoelectric field | |||||
| Type (sudden/gradual) | Amplitude of abrupt onset H (nT) g(nT) |
Range | Range | ||||||
| Hour Minute (UTC) |
Date Time (UTC) |
Horizontal component H (nT) |
Declination D (arcminute) |
Vertical component Z (nT) |
East-west component (mV/km) |
North-south component (mV/km) |
|||
| Kakioka | 05h 16m | 08d 21h | sudden | +24 | 93 | 7.5 | 58 | ||
| Memambetsu | 05h 16m | 08d 21m | sudden | +31 | 106 | 10.5 | 34 | ||
| Kanoya | 05h 16m | 08d 21h | sudden | +28 | 100 | 6 | 66 | ||
(*) Time is in UTC (Universal Time Coordinated).
(*) Time is given in 1-minute increments for the sudden commencement type and in 0.1-hour increments for the gradual commencement type.
(*) "-1" is displayed for the range, when it is unknown due to missing measurements, etc.
(*) The range may not be determined for a storm which is followed by the next one before its ending (the ending time is indicated by "C").
Plot of Kakioka 1-minute geomagnetic field for the geomagnetic storm on 7 November 2025.
Plot of Memambetsu 1-minute geomagnetic field for the geomagnetic storm on 7 November 2025.
Plot of Kanoya 1-minute geomagnetic field for during the geomagnetic storm on 7 November 2025.
*) Plot diagram opens in a separate window.
| Observatory | Commencing time | Ending time | Geomagnetic field | Geoelectric field | |||||
| Type (sudden/gradual) | Amplitude of abrupt onset H (nT) g(nT) |
Range | Range | ||||||
| Hour Minute (UTC) |
Date Time (UTC) |
Horizontal component H (nT) |
Declination D (arcminute) |
Vertical component Z (nT) |
East-west component (mV/km) |
North-south component (mV/km) |
|||
| Kakioka | 00h 09m | 13d 20h | sudden | +40 | 321 | 20.3 | 197 | ||
| Memambetsu | 00h 09m | 13d 20m | sudden | +45 | 311 | 30.2 | 115 | ||
| Kanoya | 00h 09m | 13d 20h | sudden | +52 | 364 | 17.8 | 166 | ||
(*) Time is in UTC (Universal Time Coordinated).
(*) Time is given in 1-minute increments for the sudden commencement type and in 0.1-hour increments for the gradual commencement type.
(*) "-1" is displayed for the range, when it is unknown due to missing measurements, etc.
(*) The range may not be determined for a storm which is followed by the next one before its ending (the ending time is indicated by "C").
Plot of Kakioka 1-minute geomagnetic field for the geomagnetic storm on 12 November 2025.
Plot of Memambetsu 1-minute geomagnetic field for the geomagnetic storm on 12 November 2025.
Plot of Kanoya 1-minute geomagnetic field for during the geomagnetic storm on 12 November 2025.
*) Plot diagram opens in a separate window.
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