| 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 | 10.1h m | 15d 18h | gradual | 79 | -1 | 61 | |||
| Memambetsu | 10.2h m | 15d 18m | gradual | 106 | -1 | 32 | |||
| Kanoya | 10.2h m | 15d 18h | gradual | 96 | -1 | 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 12 March 2025.
Plot of Memambetsu 1-minute geomagnetic field for the geomagnetic storm on 12 March 2025.
Plot of Kanoya 1-minute geomagnetic field for during the geomagnetic storm on 12 March 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 | 02h 37m | 23d 21h | sudden | +22 | 127 | -1 | 71 | ||
| Memambetsu | 02h 37m | 23d 21m | sudden | +23 | 154 | -1 | 47 | ||
| Kanoya | 02h 37m | 23d 21h | sudden | +27 | 129 | -1 | 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 21 March 2025.
Plot of Memambetsu 1-minute geomagnetic field for the geomagnetic storm on 21 March 2025.
Plot of Kanoya 1-minute geomagnetic field for during the geomagnetic storm on 21 March 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 | 08.0h m | 28d 19h | gradual | 77 | -1 | 60 | |||
| Memambetsu | 08.0h m | 28d 19m | gradual | 94 | -1 | 51 | |||
| Kanoya | 08.0h m | 28d 19h | gradual | 93 | -1 | 54 | |||
(*) 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 March 2025.
Plot of Memambetsu 1-minute geomagnetic field for the geomagnetic storm on 26 March 2025.
Plot of Kanoya 1-minute geomagnetic field for during the geomagnetic storm on 26 March 2025.
*) Plot diagram opens in a separate window.
Copyright (c) 2024 Kakioka Magnetic Observatory, Japan Meteorological Agency. All rights reserved.
