| 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 | 03h 01m | 17d 21h | sudden | +35 | 172 | 8.2 | 60 | ||
| Memambetsu | 03h 01m | 17d 24m | sudden | +38 | 167 | 13.3 | 36 | ||
| Kanoya | 03h 01m | 17d 21h | sudden | +35 | 212 | 7.6 | 61 | ||
(*) 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 17 February 1993.
Plot of Memambetsu 1-minute geomagnetic field for the geomagnetic storm on 17 February 1993.
Plot of Kanoya 1-minute geomagnetic field for during the geomagnetic storm on 17 February 1993.
*) 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 | 22h 20m | 28d 21h | sudden | +11 | 144 | 6.5 | 52 | ||
| Memambetsu | 22h 19m | 28d 24m | sudden | +12 | 141 | 8.4 | 33 | ||
| Kanoya | 22h 20m | 28d 21h | sudden | +12 | 157 | 5 | 49 | ||
(*) 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 27 February 1993.
Plot of Memambetsu 1-minute geomagnetic field for the geomagnetic storm on 27 February 1993.
Plot of Kanoya 1-minute geomagnetic field for during the geomagnetic storm on 27 February 1993.
*) Plot diagram opens in a separate window.
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