India, Feb. 17 -- An earthquake of 4.0 magnitude struck Delhi early Monday morning around 5:36 am, with its epicentre beneath Jheel Park in Dhaula Kuan, as an analysis by the National Center for Seismology (NCS) found that the sequence of events occurred along a northwest-southeast trending lineament.

The structural feature serves as a highly favourable location for the triggering of the main shock, primarily due to the significant structural heterogeneity present in and around the epicentral region, the report said.

The epicentre, 10 km southwest of Red Fort, was well recorded by more than 30 broadband seismic stations installed by NCS.

The variation in subsurface geological structures likely contributed to stress accumulation and sub...