Based on 1 year of data from the double-probe electric field instrument on Isee 1, a survey of occurrence of micropulsations near and inside the plasmapause has been made. The observed pulsations are classified as Pc 3 and Pi 2. In addition one single event of Pc 1 is observed. Pc 3 events are common during the local day, with a maximum percentage of occurrence as high as 72 in the morning hours. They occur on all frequencies in the Pc 3 band, but the most dominant frequencies are 30--50 mHz (20--33-s period), and the amplitudes range from 0.1 to 4--5 mV/m peak to peak. The strongest Pc 3 events are nearly linearly plarized. Based on the azimuth angle of the polarization, the orientation is usually either radial from the earth of east-west. The direction of rotatio for the electric field vector is most often left-handed in the morning sector and right-handed in the afternoon sector. The Pi 2 events are concentrated on the local nightside. The amplitude for these pulsations is typically of the order of 2 mV/m peak to peak but can range as high as 20 mV/m peak to peak. These pulsation events are usually composed of several frequency components, with the dominant frequency most often in the band 10--16 mHz (62--100-s period).