It occurred near Tarija in the south of the country at a depth of 344 miles.
The USGS estimates there is a 34% chance of damage and fatalities.
Its website states: “Overall, the population in this region resides in structures that are resistant to earthquake shaking, though vulnerable structures exist.
“The predominant vulnerable building types are adobe block and rubble/field stone masonry construction.”
One Twitter user called Yurka Tbiliski wrote: “I was rocked by a M6.8 earthquake in 10km NNE of Carandayti, Bolivia!!!”