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Table 3

List of extreme events at mid-latitude according to the following criteria: Dst ≤ −200 nT and AL ≤ −2000 nT. Availability of local magnetic field data from all six observatories in Table 1 is also mandatory.

Event # Year Month Start day End day Dst peak (nT) AL peak (nT)
1 2000 April 6 7 −288 −2300
2 2000 July 15 16 −301 −2900
3 2000 August 10 13 −235 −2500
4 2001 April 11 12 −271 −2900
5 2001 November 5 7 −292 −2800
6 2001 November 24 25 −221 −3100
7 2003 October 29 31 −353 −3900
8 2003 November 20 21 −422 −4100
9 2004 November 7 8 −374 −3000
10 2015 March 17 18 −222 −2300

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