According to National Centre for Seismology, the centre of the quake was 146 kilometers Northwest of Rajkot in Gujarat.
Prior to today's incident, two more earthquakes were felt in the state. On 15, the Rajkot district registered an earthquake measuring 4.5 on the Richter scale. This has happened only a day after an earthquake struck Rajkot. Fortunately, no damages or casualties were reported that time as well.
In past two months, the northern belt of Indian states have witnessed a series of earthquakes of above 3.0 on the Richter Scale.
The most recent was witnessed in Ladakh on July 2. The National Centre for Seismology confirmed the quake and said that it was a medium intensity quake measuring 4.5. The tie at which the tremors were felt was around 1:10 pm. The centre of the quake was 119 kilometers Northwest from Kargil, Ladakh.
In the wake of the recent series of tremors in Delhi-NCR, Wadia Institute of Himalayan Geology has said that such tremors are not unusual in the Delhi-NCR region, but indicate that strain energy is built-up in the region.
The historical earthquake catalog shows that there were strong earthquakes of 6.5 magnitude at Delhi in 1720; 6.8 at Mathura in 1803; 5.5 near Mathura in 1842; 6.7 near Bulandshahar in 1956; 6.0 near Faridabad in 1960; 5.8 near Moradabad in 1966 in the Delhi-NCR.
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All the earthquakes in Delhi-NCR are due to the release of strain energy, which have been accumulated as a result of northward movement of Indian plate and its collision with the Eurasian plate, through the fault or weak zones.
Delhi NCR has although alarmed people and now Gujarat is also preparing to tackle the concern as the state is at a high risk of earthquakes, having witnessed 9 major ones in the past 200 years.