The 1766 Istanbul earthquake was a strong earthquake with epicenter in the eastern part of the Sea of Marmara, in the Çınarcık Basin which occurred in the early hours of Thursday morning, 22 May 1766.
A tower near the Hücum Kapısı ("The assault gate") belonging to the walls of Constantinople damaged by the earthquake in an engraving by W. H. Bartlett (ante 1838).
The 1894 Istanbul earthquake occurred in the Çınarcık Basin or Gulf of Izmit in the Sea of Marmara on 10 July at 12:24pm. The earthquake had an estimated Ms magnitude of 7.0. At least an estimated 1,3
An 1894 xylograph showing damage to the Wall of Constantine. Printed originally in Science Illustré, 25 August 1894, p. 193.