An earthquake measuring 3.6 on the Richter scale struck Doda in Jammu & Kashmir at 2:47 a.m. IST today, according to the National Center for Seismology (NCS). The tremor occurred at a shallow depth of 5 km, with its epicentre at latitude 33.10 N and longitude 76.18 E. No casualties or structural damage have been reported so far.