2009 L'Aquila earthquake region saw dozens of significant aftershocks following the main earthquake. The strongest, which hit at 19:47 CEST on 7 April, measured magnitude 5.3 and caused further damage. According to the Italian National Geophysics Institute director Boschi, the aftershock epicentres migrated south-east, thus lessening the risk of further major shocks near populated areas. Aftershocks caused safety problems for rescue crews searching for injured victims trapped in precarious structures in the historic center of L'Aquila, a medieval city. Using cranes and backhoes to remove loose bricks and broken timbers, the crews were aware that even a small aftershock could have triggered the
City Centre, Dundee centre is still divided into the six medieval thoroughfares: the Seagait, Murraygait, Nethergait, Overgait, Wellgait and the Cowgait (“Gait” being a Scots word for street) which all remain today, although the "Overgate" and "Wellgate" are now enclosed shopping centres. Many of the medieval closes were demolished in the late 19th Century to make way for larger and grander Victorian streets. However the area to the north of the city centre between Meadowside, Ward Road and the Marketgait is mostly based on a grid system with wide avenues and crescents, due to much of this area being planned and designed in