The　problem　of　nonlinear　magnetoelastic　interactions　of　a　circular　cylindrical　thin　shell　experiencing　moderately　large　deflections　is　modeled　and　investigated.　The　shell　is　assumed　to　be　perfectly　electroconductive　and　immersed　in　an　applied　magnetic　field　and　carrying　electrical　current.　The　mixed　Lagrangian-Eulerian　description　is　adopted.　Consistent　with　the　von　Ka´rma´n＇s　strain　approximation,　the　formulation　is　significantly　simplified.　Explicit　representation　of　magnetoelastic　loads　including　the　Lorentz　forces,　Maxwell＇s　stress　jumps　and　of　the　induced　magnetic　fields　outside　the　shell　in　case　of　a　shell＇s　cross　section　are　obtained　and　the　influence　of　geometric　nonlinearity　on　the　induced　magnetic　fields　outside　the　shell　is　discussed.