Daijiworld Media Network - New Delhi

New Delhi, Oct 7: An earthquake of magnitude 4.9 struck Uttarakhand’s Chamoli district on Tuesday night, with tremors felt across parts of Delhi-NCR and Uttar Pradesh.

According to the National Centre for Seismology (NCS), the earthquake occurred at 10:23 pm at a depth of 13 km. The epicentre was located at 30.103°N latitude and 79.561°E longitude in Chamoli district.

Residents in several parts of Delhi-NCR, including Noida and Gurugram, as well as Meerut and Moradabad in Uttar Pradesh, reported brief tremors following the earthquake. People also took to social media to share their experiences of the shaking.

There were no immediate reports of casualties or damage.

Earlier on Tuesday, an earthquake of magnitude 4.5 struck Assam’s Nagaon district in the early hours of the day. The tremor occurred at 4:23 am at a depth of 33 km, according to the NCS.
The epicentre of the Assam earthquake was located at 26.428°N latitude and 93.060°E longitude.

Earthquakes occur due to movements of tectonic plates beneath the Earth's crust. When these plates collide or slide against each other along fault lines, accumulated energy can be suddenly released, generating seismic waves that cause the ground to shake.

Delhi-NCR is considered seismically vulnerable and falls under Zone IV, the second-highest seismic risk category in India. The region has experienced several earthquakes in recent years.