Tremors were felt in Delhi-NCR on Friday evening. The National Centre for Seismology said, "An earthquake of magnitude 4.7 hit 63 km southwest of Gurugram Haryana." Residents have been witnessing such tremors in the past two months. Earlier today, an earthquake of magnitude 4.6 hit near Champhai in Mizoram. On June 25, an earthquake of magnitude 4.5 struck south of Champhai in Mizoram. A professor of IIT had stated that Delhi may witness such tremors in near future.