an integrated microelectromechanical structure is provided with : a die , having a substrate and a frame , defining inside it a detection region and having a first side extending along a first axis ; a driving mass , anchored to the substrate , set in the detection region , and designed to be rotated in a plane with a movement of actuation about a vertical axis ; and a first pair and a second pair of first sensing masses , suspended inside the driving mass via elastic supporting elements so as to be fixed with respect thereto in the movement of actuation and so as to perform a detection movement of rotation out of the plane in response to a first angular velocity ; wherein the first sensing masses of the first pair and the first sensing masses of the second pair are aligned in respective directions , having non - zero inclinations of opposite sign with respect to the first axis .