Shimla: Earthquake tremors were felt in Mandi, Himachal Pradesh this morning. Its intensity was measured at 3.7 on the Richter scale. Its depth inside the ground was 5 kilometers. According to the National Center for Seismology (NCS), mild tremors were felt at 8:42 am. Its epicenter was Kiargi of Sundarnagar. People who felt the tremors.