
Is Delhi headed for a big quake? What recent tremors could be warning us about
Since 1720, only five earthquakes with magnitudes ranging between 5.5 and 6.7 have been recorded in or near Delhi. (Photo: Getty)
SMALL QUAKES, BIG WORRIES
The smaller earthquakes occurring near Delhi can be viewed as nature's warning signals. These minor tremors may be releasing some of the earth's built-up stress along fault lines, or they could be indicative of accumulating tectonic pressure that could eventually trigger a much bigger quake. While small quakes themselves rarely cause significant damage, their occurrence close to urban centers like Delhi calls for heightened vigilance.Situated near the Himalayan collision zone, this region experiences tectonic interactions that influence ground movements and the occurrence of earthquakes. The seismic activity here is caused not only by distant Himalayan tectonics but also by local geological structures.
The city's geographical location near the Himalayan seismic belt contributes to this risk. (Photo: Getty)
Several fault lines run through the region, including the Delhi-Haridwar Ridge (DHR), Delhi-Sargodha Ridge (DSR), Mahendragarh-Dehradun Fault (MDF), Delhi-Moradabad Fault, Sohna Fault, Mathura Fault, and the Reverse Fault (F1). Each of these plays varying roles in the seismic profile based on its geological characteristics and historical activity.IS A BIGGER ONE COMING?Delhi has not experienced an earthquake of magnitude above 5 in the last decade. It can provide a sense of relative seismic calm in recent years. However, historical records reveal that stronger earthquakes have occurred in the region. So, the city's vulnerability to seismic events can't be ruled out completely. One notable seismic event was the 6.0 magnitude earthquake in 1960.Since 1720, only five earthquakes with magnitudes ranging between 5.5 and 6.7 have been recorded in or near Delhi. This data suggests that while major earthquakes are rare, they are by no means impossible.advertisement The city's geographical location near the Himalayan seismic belt contributes to this risk, as tectonic movements in that region occasionally trigger earthquakes of varying magnitudes.Hence, Delhi's recent history of low seismic activity should not lead to complacency. The presence of historical earthquakes above magnitude 5 reveals a latent seismic risk that requires ongoing attention and preparedness efforts.By learning from past events and leveraging modern technology and planning, Delhi can better safeguard its population against future earthquakes, ensuring resilience in the face of natural hazards.- EndsTune InMust Watch

Try Our AI Features
Explore what Daily8 AI can do for you:
Comments
No comments yet...
Related Articles


Time of India
3 hours ago
- Time of India
HP & U'khand again, lessons anyone?
Last week, the Supreme Court observed that if the deteriorating ecological balance in Himachal Pradesh goes unchecked, the state could 'vanish into thin air'. The same holds true for Uttarakhand, as the destruction caused by flash floods in Harshil Valley shows. The devastation underscores - yet again - that India's approach to development for the Himalayan states is backfiring. Instead of persisting with this destructive path, the approach must be rooted in science and ecological realities of the it will require making hard choices. But looking at the scale of destruction, the choice is clear. Steep slopes, young geo-formations and diverse microclimates make the region vulnerable to climate-induced changes. The region's average temperature is rising faster than the global average, resulting in more cloudbursts, excessive rainfall and flash floods. Deforestation and unchecked rise in human and vehicular traffic only add to this destructive science into policymaking means moving away from business-as-usual approaches that divorce development from ecological well-being. The region's ecological specificities are well known. National Mission for Sustaining the Himalayan Ecosystem is part of 2008 National Action Plan on Climate Change . Research institutions and Coalition for Disaster Resilient Infrastructure (CDRI) must be integrated into the policymaking process. Creating an interface between science, policy, people and business will provide the foundation for both economically and ecologically sustainable development . Failing to do so will leave Himalayan states trapped in a vicious cycle of extreme weather events, and loss of lives and assets, eliciting more sighs and handwringing.


India Today
9 hours ago
- India Today
Glacial lake outburst: Why they are a big threat for the Himalayas
Heavy rains followed by flash floods ravaged the village of Dharali in Uttarkashi district, Uttarakhand, on Tuesday. After analysing the frequency and pattern of the floods, meteorologists suggest that the mudslide could have been from a glacial lake outburst, not directly a cloudburst.A glacial lake forms in front of shrinking glaciers, surrounded by unstable and unconsolidated materials such as rocks, boulders, pebbles, and the structures surrounding the lake burst due to a heavy inflow of water, it results in what is known as a Glacial Lake Outburst Flood (GLOF). According to the National Disaster Management Authority (NDMA), 189 glacial lakes in the Indian Himalayas are considered high risk, with most located in the Central and Eastern Himalayas. Damage reported in Dharali market area due to flash floods triggered by a cloudburst at Kheer Gad area of Uttarkashi district, Uttarakhand. (PTI) Speaking about the frequency of GLOFs, Ashim Sattar, Assistant Professor at IIT Bhubaneswar, said, 'There is no frequency of it, as till now we have three major GLOF events.''We do not have the trend of increasing or decreasing frequency of such outbursts. And also, there is not enough data on long-term frequency. Whatever is available doesn't give distinct frequency data.'WHY HAVE THEY BECOME A THREAT IN THE HIMALAYAS?The Indian Space Research Organisation (ISRO) had earlier released a report on the expanding glaciers in the Himalayan region. The report revealed that many glacial lakes have rapidly expanded in the mentioned that, out of 2,431 glacial lakes larger than 10 hectares, 676 have expanded significantly, with 130 of these located in India.'Smaller lakes, even the supraglacial lakes, are causing big disasters. That is a matter of concern,' said Ashim. Steep topography, high seismic activity, and increasing global warming have intensified the severity of GLOFs in the Himalayan region, along with heavy rainfall, snowmelt, landslides, and interventions, such as infrastructure development near glacial lakes, can also trigger an outburst. For example, the Chamoli GLOF disaster of 2021 was linked to hydroelectric projects in the TO PREVENT SUCH OUTBURSTS?Preventing disasters from GLOFs requires proper monitoring before an event occurs. India has installed early monitoring systems at Sikkim's Shakho Chho Glacial glacial lake outbursts in time can help prevent downstream disasters. Glacial lakes in India are tracked using satellite images. 'To reduce this risk of damage to infrastructure and communities, early warning systems can be an option, so that people will have enough time to evacuate,' said have been monitored by satellite data to see how they are changing over time. But monitoring would not solve the problem of disasters.'The topography of the Himalayas makes monitoring difficult. 'High regions are difficult to monitor, but satellite images can help us,' Ashim expressed hope. WHAT NEEDS TO BE DONE?The threat of GLOFs could loom larger in the coming years due to a warming calls for a comprehensive risk management strategy, the utilisation of technology to install early monitoring devices in the region, collaboration on transboundary data, and sustainable infrastructure planning.- Ends


Time of India
13 hours ago
- Time of India
Rare clouded leopard spotted in the wild: Viral video inside
Clouded leopards are among the most elusive big cats in Asia, which mostly remain hidden in mystery due to their secretive, nocturnal habits. Clouded leopards are one of nature's most mysterious big cats. With their beautifully patterned coats and secretive habits, these elusive animals are rarely seen in the wild. Mostly living high in the treetops of dense forests across Southeast Asia and Northeast India, they can be silently spotted at night and avoid human contact. Their quiet existence has kept them mostly out of sight, even from researchers and wildlife cameras. So it becomes a precious moment when one such animal is spotted in the wild. Viral video shows a clouded leopard mother and cubs in the jungle Susanta Nanda, a former Indian Forest Service officer, recently shared a video on the social media platform X that shows a clouded leopard mother with her cubs moving through the lush forests of Northeast India. He captioned the video as, 'Elusive. Ethereal. Endangered. With barely ~10,000 left in the wild & scattered sightings in NE India, the Clouded Leopard is our most secretive big cat. Here, a rare glimpse — a mother with her cubs, guardians of an ancient rainforest. by Taboola by Taboola Sponsored Links Sponsored Links Promoted Links Promoted Links You May Like No annual fees for life UnionBank Credit Card Apply Now Undo A sight so rare that it's mythical'. This footage is exceptionally rare, taking into consideration how seldom clouded leopards are seen. Their secretive nature makes such wild encounters significant and fulfilling to conservationists. Clouded Leopards are vulnerable and fast vanishing Clouded leopards are officially listed as vulnerable on the IUCN Red List, with fewer than 10,000 mature individuals remaining globally. Smaller populations are scattered across Northeast India, the Himalayan foothills, Southeast Asia, and southern China. They are known for their beautiful cloud-patterned fur, exceptional tree-climbing abilities, and long canine teeth, which are also the largest in proportion to body size among all cats. These cats face significant threats from habitat loss, poaching, and human‑wildlife conflict. In Northeast India alone, forest fragmentation and illegal wildlife trade are contributing to their decline. What are the efforts taken by experts to protect them According to a study named, Forecasting Suitable Habitats of the Clouded Leopard (Neofelis nebulosa) in Asia: Insights into the Present and Future Climate Projections Within and Beyond Extant Boundaries, experts have advised the need for strategic conservation actions, including establishing protected areas and creating transboundary wildlife corridors to reconnect fragmented habitats and maintain genetic diversity among populations. A new roadmap identifies 18 critical corridors across the clouded leopard's range. This study also tells that clouded leopards often coexist with larger predators by adjusting their activity patterns and using arboreal spaces effectively playing hide-and-seek to avoid direct encounters. In Manas National Park, Assam, researchers found a density of about 1.73 individuals per 100 km², revealing their preference for dense, canopy-rich forests.