According to the United States Geological Survey, an earthquake with a magnitude of 6.2 struck western Afghanistan early on Saturday. The epicentre was not far from the major city in the area.
According to the USGS, the aftershock had a Richter magnitude of 5.5 and was located 40 kilometres (25 miles) northwest of the city of Herat.
Residents and business owners left buildings as the earthquake struck at around 11:00 a.m. (0630 GMT), according to an AFP journalist in the city, but there were no immediate reports of injuries or structural damage.
After a 5.9-magnitude earthquake slammed the poor region of Paktika in June of last year, it was the deadliest earthquake to hit Afghanistan in nearly 25 years, leaving more than 1,000 people dead and tens of thousands homeless.
In particular, the Hindu Kush mountain range, which is close to the meeting point of the Eurasian and Indian tectonic plates, is frequently affected by earthquakes in Afghanistan.