A magnitude-4 earthquake struck Hoa Binh Province in northern Vietnam at a depth of 10km on Thursday, according to the Institute of Geophysics.
The quake occurred at 2:52 pm in Hoa Binh’s Da Bac District, the Institute of Geophysics said, adding that the tremor posed no risk of disaster.
This is the third earthquake to have hit Da Bac District this month.
The first two quakes occurred on the night of December 17 and on the afternoon of December 14, measuring 2.6 and 3.9 on the Richter scale, respectively.
On Thursday, another magnitude-2.7 tremor hit Kon Plong District in the Central Highlands province of Kon Tum. It posed zero disaster risk.
Kon Plong District has also been struck by several quakes this month which measured less than four on the Richter scale.
The Institute of Geophysics said it continued to monitor aftershocks following the incidents.
In Vietnam, earthquakes of magnitude 4-4.9 have mild intensity, only causing household objects to shift, but no damage or just minor damage, according to the institute.