Context :

Aims : It is widely recognized that processes taking place inside group environment could be among the main drivers of galaxy evolution .
Compact groups of galaxies are in particular good laboratories for studying galaxy interactions and their effects on the evolution of galaxies due to their high density and low velocity dispersion .
SCG0018-4854 is a remarkably high galaxy density and low velocity dispersion group with evidence of a recent interaction .
It has been detected and analyzed at different wavelengths , but its kinematics has not yet been studied in detail .

Methods : We obtained VLT FORS2 optical observations and we present spectroscopic and photometric evidence of how dramatically galaxy interactions have affected each of the four member galaxies .

Results : We found peculiar kinematics for each galaxy and evidence of recent star formation .
In particular , the gas and stellar radial velocity curves of two galaxies are irregular with a level of asymmetry similar to that of other interacting galaxies .
We discovered the presence of a bar for NGC 92 therefore revising a previous morphological classification and we obtained spectroscopic confirmation of a galactic-scale outflow of NGC 89 .

Conclusions : Peculiar kinematics and dynamic consideration lead to a rough estimate of the age of the latest interaction : \tau \approx 0.2 - 0.7 \mathrm { Gyr } , suggesting that SCG0018-4854 is a young and dynamical group .