Residents of the area flocked to Facebook to report the ‘quake’, with several saying they felt and heard it, while others pointed to a more man-made reason for the uproar.
The prevailing idea is that it was either a quarry blast or an earthquake.
You weren’t imagining it – there was an earthquake, and people across the city felt the tremors in the early hours.
On Saturday night, and again on Sunday morning, Capetonians felt tremors as a result of seismic activity.