Theepicentre was 12 km underground in Thuy Nguyen district at latitude20.99 degrees north and longitude 106.81 degrees east.
Professor Nguyen Hong Phuong, Deputy Director of the Earthquake and Tsunami Warning Centre, said that thetremor was also felt in high-rise buildings in Hanoi and in parts of HaiPhong City and Quang Ninh and Bac Ninh provinces, he added./.