Monday morning Delhi temblor due to in-situ material heterogeneity: Scientist
New Delhi (PTI): The temblor that jolted the national capital early Monday was a result of naturally occurring variation in the geological features of the region and not due to plate tectonics, a senior scientist said.
The 4.0 magnitude earthquake had its epicentre at Jheel Park region near Dhaula Kuan and the shallow focal depth made citizens in nearby areas hear loud sounds as the earth shifted slightly this morning.
Delhi region in northern India experiences frequent tremors due to both far-field and near-field earthquakes from the Himalayan and local sources, respectively.
The Dhaula Kuan region had experienced a 4.6 magnitude earthquake in 2007. However, its impact was not as strongly felt as Monday's temblor because it took place at a depth of 10 km, National Centre for Seismology Director O P Mishra said.
Delhi is placed in seismic zone IV in the seismic zoning map of India, the second highest in the country.
The national capital region is exposed to moderate to high risk seismic activity due to Himalayan earthquakes such as the 7.5 magnitude Garhwal Himalaya quake in 1803, 6.8 magnitude Uttarkashi earthquake in 1991, 6.6 magnitude Chamoli earthquake in 1999, 7.8 magnitude Gorkha earthquake in 2015 and a few moderate earthquakes from the Hindukush region.
Local earthquakes recorded in the region include 6.5 magnitude Delhi earthquake in 1720, 5 magnitude Mathura earthquake in 1842, 6.7 magnitude Bulandshahar earthquake in 1956 and 5.8 magnitude Moradabad earthquake in 1966.
"The epicentre of Monday's earthquake was at Jheel Park in Dhaula Kuan, it was a 4.0 magnitude earthquake. It was in the depth of 5 km, it is called shallow depth, hence people felt the effect," Mishra said.
Earthquakes have happened earlier in the region and seismologically, it is not new region
"Earlier, there was a 4.6 magnitude earthquake in 6 km periphery, but it was deeper, with 10 km depth. There is a difference. It was not a plate tectonic earthquake, it was due to in-situ material heterogeneity, it was due to local effect," Mishra said.
In-situ material heterogeneity means it occurred due to variation in geological features in the region.
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Caste census will form basis for future policy decision, says CM Siddaramaiah
Mysuru (Karnataka) (PTI): Karnataka Chief Minister Siddaramaiah on Wednesday said that the ongoing caste census would form the basis for future policy decisions, asserting that the exercise was crucial to advancing social justice in the state.
Addressing a gathering at the Siddarameshwara Jayanti celebrations here, he said caste enumeration was being carried out for the first time since 1931 and would be followed by deliberations once the report is submitted.
"At present, a caste census (Jaati Sameekshe) is underway. After the report comes, we will discuss it and take necessary decisions," Siddaramaiah said.
He underlined the government’s commitment to equality, stating, "We are committed to social justice. No one should face injustice. Even if not 100 per cent, we will strive to ensure 99 per cent justice."
Referring to measures aimed at addressing intra-caste disparities, the chief minister said the government had already implemented internal reservation based on revised classifications.
"We have gone beyond the Nagamohan Das report and implemented internal reservation… now it has been revised to 5.25 per cent, 5.25 per cent, and 4.5 per cent. This has been approved by the Cabinet," he said.
Siddaramaiah said the broader objective was to ensure equitable distribution of resources and opportunities, while reiterating that policy interventions would be guided by constitutional principles.
"Our objective is equal share and equal life for all," he said.
He also emphasised the role of education in eliminating inequalities, particularly among marginalised communities, and said empowerment was essential to dismantle entrenched caste hierarchies.
"Only when people gain such empowerment can caste divisions be eradicated. Education is essential for this," he added.
The CM said the government would examine demands raised by various communities and take decisions based on feasibility, while ensuring that benefits reached all sections without discrimination.
