  Using Cu NQR in Eu-doped La_{2- x}Sr_xCuO_4 we show the evidence of the
pinned stripe phase for moderate doping at 1.3K. The pinned fraction increases
by one order of magnitude near hole doping x=1/8. The NQR lineshape reveals
three inequivalent Cu positions: i) sites in the charged stripe; ii)
nonmagnetic sites outside the stripes; iii) sites with a magnetic moment of
0.29 Bohr magnethon in the AF correlated regions. A dramatic change of the NQR
signal for x > 0.18 correlating with the onset of bulk superconductivity
corresponds to the depinning of the stripe phase. .
