Pune, Mar 15: An earthquake shock of slight intensity was recorded in Koyna region of Maharashtra, about 102 km from here, last night, according to India Meteorological Department (IMD). The quake, measuring 3.1 on the Richter scale, with its epicentre at latitude 17.7 degree north and longitude 73.6 degree east in Koyana region, was recorded at 8.16 pm, IMD said in a release. Bureau Report