The authorities concerned have identified the two buildings as risky and asked the residents of the two buildings to evacuate the place.
Additional police have been deployed in the area to maintain security, said additional deputy commissioner of Sylhet Metropolitan Police BM Ashraf Ullah Taher.
On Saturday, earthquake jolted the district five times. Fortunately, there were no reports of any casualty or damage to property.
The first quake hit at 10.37 am, followed by tremors at 10.51 am, 11.30 am, 11.34 am and 2.00 pm, officials said.
Professor Mushtaq Ahmed at Civil and Environmental Engineering (CEE) of Shahjalal University of Science and Technology (SUST) has been conducting research on earthquakes.
Speaking to Prothom Alo, he said the epicentre of the quake was the Dauki fault, which is not far from Sylhet city. This is a very dangerous fault. That’s why Sylhet is in a risk of earthquake. Several quakes in a day could be read as a forecast for a strong quake but at the same time such tremors weakens the strength of the quake, he added.