Shillong: An earthquake of moderate intensity rocked western Meghalaya on Thursday evening, officials said. The earthquake of magnitude 4.7 shook the region around 8 pm, officials at the regional seismological centre here told PTI. There was no report of any casualty, police said. The quake lasted for a few seconds and had its epicentre in remote East Garo Hills district at a depth of about 10 km below the earth's crust. Mild tremors were felt in Shillong.