Аннотация:The results obtained in additional archaeological and archeoseismological research within the limitsof the settlement of Balandtepa and the Kirkhujra fortress once again prove that the ancient city of Eilatanperished in the 1st century BC. The city of Pap (Bab) was built no later than the end of the 6th–beginning ofthe 5th century BC on the site of the settlement of Kyrkhujra, which is located 2 km south of the modern cityof Pap, on the right bank of the Syr Darya River. During this time, it was destroyed several times by floodsand remained under mudflow deposits. After each flood, the city was almost completely rebuilt. The city onKirkhujra was destroyed at the end of the 4th–beginning of the 5th century AD due to a very strong earthquake.After this seismic event, people left the territory of the destroyed city and built a new city on the Balandtepamonument located 1 km west of Kirkhujr. Additional information obtained about the unusualarrangement of detrital horizons in the talus (the tail of the destruction of the northern fortress wall of Balandtep)indicates that the wall was destroyed not by one, but by three strong earthquakes, which apparentlyoccurred at the end of the 6th–beginning of the 7th centuries AD. During each subsequent earthquake, fragmentsof bricks flew off to ever greater distances with a decreasing height of the wall. It turns out that eachsubsequent seismic event was stronger than the previous one. Earthquakes of this sequence can only have aswarm or doublet nature, which is typical for a given territory. The Pap swarm of 1984, which occurred in thiszone, and the Gazli earthquakes of 1976 and 1984 in the zone of the South Tien Shan seismogenic zone evidencethis. At the same time, an analysis of archaeological materials shows that, at the beginning or the firstquarter of the 8th century, there was some kind of natural cataclysm, as a result of which the owner of the citadeland the inhabitants of the shahristan (inner city) moved to the rabad (outer city). Their places were takenover by artisans, who worked there until the last quarter of the 8th century.