
A map shows where an earthquake hit Cao Bằng Province on Wednesday
The latest quake, of magnitude 3.2, struck Hòa An District, Cao Bằng Province at 10pm on Wednesday.
The tsunami warning centre is continuing to monitor this earthquake.
Of the total 35 earthquakes that occurred from the beginning of 2018, 15 were reported in Quảng Nam Province’s Bắc Trà My and Nam Trà My districts.
However, these were small quakes that did not affect houses and people, the Institute of Geophysics said.