Mathematical Analysis of the 08 May 2014 Weak Storm

Table 1

Geomagnetic storm Dst index.

Class	Number	%	Dst range (nT)
Weak	482	44	−30 to −50
Moderate	346	32	−50 to −100
Strong (i.e., intense)	206	19	−100 to −200
Severe (very intense)	45	4	−200 to −350
Great	6	1	<−350