4.9-Magnitude Quake Strikes Chamoli, Uttarakhand

Chamoli in Uttarakhand was hit by a magnitude‑4.9 earthquake at 22:23:23 IST on Tuesday. The tremor originated 13 km below the ground, with its epicentre about 50 km south of Joshimath. The National Centre for Seismology posted the details on X. Earlier that day a magnitude‑4.5 quake struck Assam’s Nagaon district at 04:23:47 IST, coming from a depth of 33 km; the centre was recorded at latitude 26.428 N and longitude 93.060 E. On 5 October a smaller magnitude‑2.5 quake was felt in Una, Himachal Pradesh at 23:48:35 IST, originating 9 km deep at latitude 31.618 N, longitude 76.301 E. All three events were reported by the NCS via its X accounts. ## Context These tremors occur in the Himalayan belt, where the Indian plate pushes into the Eurasian plate, making the region prone to frequent seismic activity.