Scattering of the metacity cloak (consisting of concrete buildings) by a point source at frequency 10 Hz (A), (C) and benchmark in concrete plate (B), (D); the seismic source is situated at a distance of 700 m from the centre of the cloak along a radial direction marked by red segment in (A), where the arc length is the Euclidean distance; Insets in (C) and (D) are the 3D views of (A) and (B), respectively. Blue curve in (C) and (D) shows profile of magnitude of total displacement field computed along the red segment in (A) and (B), respectively. Dark grey region in (C) marks the protected region inside the cloak with around 40 percent of reduction of the magnitude of total displacement in comparison with same region in (D). Light grey region in (C) marks the cloak itself.