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Geomagnetic storm information (October 2023)


yGeomagnetic storm observed on 20 October 2023z
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 22.3h 23d 00h gradual 91 9.2 47
Memambetsu 22.3h 23d 00m gradual 96 10.9 19
Kanoya 22.3h 23d 00h gradual 91 8.4 58

(*) 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 October 2023.
Plot of Memambetsu 1-minute geomagnetic field for the geomagnetic storm on 20 October 2023.
Plot of Kanoya 1-minute geomagnetic field for during the geomagnetic storm on 20 October 2023.

*) Plot diagram opens in a separate window.



yGeomagnetic storm observed on 26 October 2023z
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 08.7h 27d 21h gradual 70 9 61
Memambetsu 08.7h 27d 21m gradual 90 10.5 32
Kanoya 08.7h 27d 21h gradual 78 8.6 53

(*) 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 October 2023.
Plot of Memambetsu 1-minute geomagnetic field for the geomagnetic storm on 26 October 2023.
Plot of Kanoya 1-minute geomagnetic field for during the geomagnetic storm on 26 October 2023.

*) Plot diagram opens in a separate window.



yGeomagnetic storm observed on 28 October 2023z
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)
Memambetsu 04.2h 30d 06m gradual 107 11.8 29
Kanoya 04.2h 30d 06h gradual 125 7.9 62

(*) 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 Memambetsu 1-minute geomagnetic field for the geomagnetic storm on 28 October 2023.
Plot of Kanoya 1-minute geomagnetic field for during the geomagnetic storm on 28 October 2023.

*) Plot diagram opens in a separate window.



yGeomagnetic storm observed on 28 October 2023z
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 04.3h 30d 06h gradual 105 8.2 62

(*) 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 28 October 2023.

*) Plot diagram opens in a separate window.



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