We study the well pronounced Moreton wave that occurred in association with the X17.2 flare/CME event of October 28 , 2003 .
This Moreton wave is striking for its global propagation and two separate wave centers , which implies that two waves were launched simultaneously .
The mean velocity of the Moreton wave , tracked within different sectors of propagation direction , lies in the range of v \approx 900 - 1100 km s ^ { -1 } with two sectors showing wave deceleration .
The perturbation profile analysis of the wave indicates amplitude growth followed by amplitude weakening and broadening of the perturbation profile , which is consistent with a disturbance first driven and then evolving into a freely propagating wave .
The EIT wavefront is found to lie on the same kinematical curve as the Moreton wavefronts indicating that both are different signatures of the same physical process .
Bipolar coronal dimmings are observed on the same opposite East-West edges of the active region as the Moreton wave ignition centers .
The radio type II source , which is co-spatially located with the first wave front , indicates that the wave was launched from an extended source region ( \gtrsim 60 Mm ) .
These findings suggest that the Moreton wave is initiated by the CME expanding flanks .