These earthquakes were followed by multiple aftershocks. The epicentral region saw dozens of significant aftershocks following the main earthquake. The Biobio Region of Chile has had strong aftershocks of this earthquake. The earthquake was also followed by multiple aftershocks. The earthquake generated a significant series of its own aftershocks. Rolleston was close to many of the aftershocks following the September quake. Numerous aftershocks occurred after the main tremor. The work was slowed by aftershocks and smaller landslides. The episode 11 season 3 ("Aftershocks") was written after the 1989 Earthquake. This tremor was followed by two minor aftershocks, one occurring 45 minutes later, measuring M5.5. However, at least twelve other minor aftershocks were associated with the seismic event. It was followed by more than 44 aftershocks of a magnitude 5.0 or greater. By December 3, 170 aftershocks with a magnitude over 3.0 had been noted. This was apparent in the pattern of epicenters of the subsequent aftershocks. The first jolt was followed by 90 aftershocks.