At the Kakioka Magnetic observatory geomagnetic phenomena are extracted from observed magnetic variations and their ranges and classes are determined for each.
Below you can search and view past geomagnetic events.
The databse is updated every month.
The date and time are based on Coordinated Universal Time (UTC).
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Select the location, phenomenon, or time period you wish to view in the form below and click Search.
Retrieval period
・Kakioka ： Magnetic storm, ssc ・・・ After February 1924 ・Kakioka ： si, bay, sfe ・・・ After July 1957 ・Memambetsu ： Magnetic storm, si&ssc, bay, sfe ・・・ After July 1957 ・Kanoya ： Magnetic storm, si&ssc, bay, sfe ・・・ After January 1958 ・Kakioka ： pi, pc ・・・ From June 1997 to December 2011 ・Memambetsu ： pi, pc ・・・ After April 1997 ・Kanoya ： pi, pc ・・・ From June 1996 to December 2011 |
si:Sudden Impulse ssc:Storm Sudden Commencement bay:bay disturbance sfe:Solar Flare Effect
pi:Irregular Pulsation pc:Continuous Pulastion pi/pc(Induction):Using Induction Magnetometer.[Unit:nT/sec]
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