| 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 | 08.0h | 25d 21h | gradual | 174 | 14 | 87 | |||
| Memambetsu | 08.0h | 25d 21m | gradual | 182 | 20.6 | 62 | |||
| Kanoya | 08.0h | 25d 21h | gradual | 179 | 13.7 | 74 | |||
(*) 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 23 March 2023.
Plot of Memambetsu 1-minute geomagnetic field for the geomagnetic storm on 23 March 2023.
Plot of Kanoya 1-minute geomagnetic field for during the geomagnetic storm on 23 March 2023.
*) Plot diagram opens in a separate window.
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