| 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 44m | C | sudden | +11 | |||||
| Memambetsu | 23h 44m | C | sudden | +12 | |||||
| Kanoya | 23h 44m | C | sudden | +13 | |||||
(*) 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 6 September 2017.
Plot of Memambetsu 1-minute geomagnetic field for the geomagnetic storm on 6 September 2017.
Plot of Kanoya 1-minute geomagnetic field for during the geomagnetic storm on 6 September 2017.
*) 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 | 23h 00m | 09d 07h | sudden | -17 | 232 | 14.5 | 132 | 353 | 67 |
| Memambetsu | 23h 00m | 09d 07m | sudden | -58 | 280 | 21.5 | 64 | 47 | 123 |
| Kanoya | 23h 00m | 09d 07h | sudden | +7 | 223 | 14.1 | 117 | 58 | 31 |
(*) 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 September 2017.
Plot of Memambetsu 1-minute geomagnetic field for the geomagnetic storm on 7 September 2017.
Plot of Kanoya 1-minute geomagnetic field for during the geomagnetic storm on 7 September 2017.
*) 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 | 20h 04m | 13d 11h | sudden | +18 | 75 | 9.3 | 54 | 202 | 30 |
| Memambetsu | 20h 04m | 13d 11m | sudden | +19 | 100 | 11.8 | 20 | 13 | 34 |
| Kanoya | 20h 04m | 13d 11h | sudden | +23 | 84 | 9.5 | 61 | 43 | 14 |
(*) 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 September 2017.
Plot of Memambetsu 1-minute geomagnetic field for the geomagnetic storm on 12 September 2017.
Plot of Kanoya 1-minute geomagnetic field for during the geomagnetic storm on 12 September 2017.
*) 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 | 11h 16m | 19d 00h | sudden | +14 | 81 | 7.9 | 42 | 172 | 32 |
| Memambetsu | 11h 16m | 19d 00m | sudden | +16 | 102 | 11.1 | 23 | 18 | 50 |
| Kanoya | 11h 16m | 19d 00h | sudden | +15 | 85 | 7.7 | 49 | 44 | 23 |
(*) 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 September 2017.
Plot of Memambetsu 1-minute geomagnetic field for the geomagnetic storm on 14 September 2017.
Plot of Kanoya 1-minute geomagnetic field for during the geomagnetic storm on 14 September 2017.
*) 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 | 23h 47m | 29d 20h | sudden | +9 | 174 | 9.4 | 65 | 171 | 28 |
| Memambetsu | 23h 47m | 29d 20m | sudden | +4 | 189 | 13.2 | 32 | 22 | 68 |
| Kanoya | 23h 47m | 29d 20h | sudden | +12 | 197 | 8.2 | 57 | 32 | 16 |
(*) 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 September 2017.
Plot of Memambetsu 1-minute geomagnetic field for the geomagnetic storm on 26 September 2017.
Plot of Kanoya 1-minute geomagnetic field for during the geomagnetic storm on 26 September 2017.
*) Plot diagram opens in a separate window.
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