 The United States Geological Survey (USGS) measured its magnitude as a minimum of 7.6 on the moment magnitude scale, with its epicentre about northeast of Muzaffarabad, Azad Kashmir, and north-northeast of the national capital Islamabad.Most of the devastation hit north Pakistan and Pakistan administered Kashmir.In Kashmir, the three main districts were badly affected and Muzaffarabad, the state capital of Pakistan-administered Kashmir, was hardest hit in terms of casualties and destruction.