Some new features of the well known geomagnetic storm of March 1989 are presented in this paper. They include more detailed description of the geophysical situation in the Eastern hemisphere (Siberian sector) as well as more careful consideration of the dynamics of the energetic particle precipitation during the event. More attention is given to the peculiarities of the geomagnetic activity at that time. Change of the magnetospheric configuration during active phase of the storm is especially noteworthy. Intriguing feature of this storm is the impulsive powerful solar proton event (SPE) with simultaneous impulsive intense precipitation of the protons with “soft” energetic spectra (1–40 MeV) appearing in a time interval between 02 and 12 UT of March 13 at the background of a previously existing moderate energetic proton flux. Intensity of this impulsive SPE was very high (up to 5300 pfu for protons with E > 10 MeV). Most probably this SPE was caused by the impulsive solar X-ray flare (N28, W02) classified as X