An extremely narrow current sheet (width less than Rci and the D=electron inertial length, height perpendicular to B = 50D) is initiated within a background magnetoplasma (diameter >> Rci &D) capable of supporting Alfven waves. The experiments are performed in the Large Plasma Device (LAPD) at UCLA. The pulsed current rapidly creates a density cavity (dn/n= 80%) as well as strong plasma flows. We will present data on the morphology of the current sheet, plasma flows, and waves accompaning this process.