National Institute of Disaster Management (NIDM) under the Ministry of Home Affairs has identified 29 districts under Zone-IV, considered to be the high seismic zone.
The NIDM has divided the state into three zones, with areas bordering Nepal and Uttarkashi in Uttarakhand figuring in Zone-IV.
The intensity of the tremors have led experts to rethink on how safe is the state from quakes.
While Saturday's quake measuring 7.9 on Richter scale that epicentred in Nepal left a trail of massive destruction in the Himalayan country, Uttar Pradesh felt bouts of aftershocks mostly in Barabanki, Sant Kabir Nagar and Gorakhpur districts. Badaun, Kushinagar, Shravasti and Balia were the other districts in the state affected by the tremors.
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"Luckily, this time the impact of tremors from Nepal was not so aggressive in UP," he told PTI.
It was the alluvium cover in the Indo-Gangetic Plain, which acted as a cushion and prevented large-scale damage in the state. In geological terms, the state falls in the "safe" zone as the alluvium cover acts a "shock absorber".