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Geomagnetic storm information (June 1990)


yGeomagnetic storm observed on 12 June 1990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 08h 20m C sudden +27 182 20 107
Memambetsu 08h 20m C sudden +42 237 27.3 56
Kanoya 08h 20m C sudden +28 194 16 105

(*) 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 June 1990.
Plot of Memambetsu 1-minute geomagnetic field for the geomagnetic storm on 12 June 1990.
Plot of Kanoya 1-minute geomagnetic field for during the geomagnetic storm on 12 June 1990.

*) Plot diagram opens in a separate window.



yGeomagnetic storm observed on 14 June 1990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 03h 10m 15d 15h sudden +74 148 12.9 55
Memambetsu 03h 10m 15d 08m sudden +76 157 18.5 52
Kanoya 03h 10m 15d 15h sudden +98 181 11.8 63

(*) 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 June 1990.
Plot of Memambetsu 1-minute geomagnetic field for the geomagnetic storm on 14 June 1990.
Plot of Kanoya 1-minute geomagnetic field for during the geomagnetic storm on 14 June 1990.

*) Plot diagram opens in a separate window.



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