| 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 | 23h 01m | 16d 21h | sudden | +4 | 116 | 8.7 | 66 | ||
| Memambetsu | 23h 01m | 16d 21m | sudden | -4 | 105 | 11.5 | 45 | ||
| Kanoya | 23h 01m | 16d 21h | sudden | +6 | 133 | 6.9 | 70 | ||
(*) 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 14 February 2023.
Plot of Memambetsu 1-minute geomagnetic field for the geomagnetic storm on 14 February 2023.
Plot of Kanoya 1-minute geomagnetic field for during the geomagnetic storm on 14 February 2023.
*) 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 | 10h 35m | 21d 18h | sudden | +19 | 97 | 7 | 45 | ||
| Memambetsu | 10h 35m | 21d 18m | sudden | +23 | 101 | 10.9 | 28 | ||
| Kanoya | 10h 35m | 21d 18h | sudden | +21 | 108 | 6.2 | 48 | ||
(*) 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 20 February 2023.
Plot of Memambetsu 1-minute geomagnetic field for the geomagnetic storm on 20 February 2023.
Plot of Kanoya 1-minute geomagnetic field for during the geomagnetic storm on 20 February 2023.
*) 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 | 19h 23m | 01d 06h | sudden | +28 | 224 | 11.5 | 82 | ||
| Memambetsu | 19h 23m | 01d 06m | sudden | +34 | 228 | 18.9 | 42 | ||
| Kanoya | 19h 23m | 01d 06h | sudden | +33 | 251 | 9.3 | 78 | ||
(*) 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 26 February 2023.
Plot of Memambetsu 1-minute geomagnetic field for the geomagnetic storm on 26 February 2023.
Plot of Kanoya 1-minute geomagnetic field for during the geomagnetic storm on 26 February 2023.
*) Plot diagram opens in a separate window.
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