"1766 earthquake" . "of 1766" . . "1766" . "earthquake" . "the earthquake of 1766" . . "an earthquake on 22 May 1766" . "Earthquake" . "the earthquake" . "4000" . "earthquake on 22 May 1766" . "1766 Istanbul earthquake" . "earthquakes of 1766" . . . . . . . . . "1766 Istanbul earthquake" . "large earthquake" .