Most of these earthquakes occured inmountainous provinces bordering China and Laos, such as Quang Ninh Cao Bang, SonLa, Lai Chau, Dien Bien, Thanh Hoa, Nghe An, Ha Tinh, Thua Thien-Hue, and QuangNam.
The latest quake, of 3.2 magnitude on the Richter scale, struck Hoa An district, northern Cao Bang provinceat 10pm of September 19.
The tsunami warning centre is continuing tomonitor this earthquake.
Of the total 35 earthquakes that occurredfrom the beginning of 2018, 15 were reported in Bac Tra My and Nam Tra Mydistricts, central Quang Nam province.
However, these were small quakes that did not affecthouses and people, the Institute of Geophysics said.-VNA