Magnetic field and energetic particle data from the AMPTE/CCE have been used to identify 103 magnetic reconfiguration events in the near-Earth (R≤8.8 RE) nightside equatorial plane. The events involve a dipolarization of the magnetic field and increases in energetic particle fluxes typical of substorms. This study is the first survey of such signatures extended over both local time and radial distance. The events are distributed in magnetic local time (MLT) from 19.9 MLT to 4.7 MLT with the peak of the distribution near midnight. No events were observed inside of 6.4 RE, and the occurrence frequency increased with radial distance. For Kp≤3-, the local time peak of the distribution is near 23 MLT, whereas for Kp≥4+, the distribution center is near 2 MLT. Futhermore, the occurrence frequency of the events when Kp≥4+ is 4 times greater than the occurrence frequency for events when Kp≤3-. The results of this study suggest that (1) substorm reconfiguration of the magnetic field, presumably arising from disruption/diversion of the cross-tail current, seldom reaches inside a radial distance of about 6.4 RE, and (2) the central meridian of the substorm current wedge tends to shift from the premidnight to the postmidnight sectors as the global geomagnetic activity increases. ¿ American Geophysical Union 1988