. . . "Peru is struck by a major earthquake" . "1609-10-20" . . . "October 20" . "1687 Peru earthquake" . "1687 earthquake" . . "earthquake" . "an earthquake" . . "5000" . . "1687-10-20" . "1687" . . "1687: Earthquake" . . "8.7 magnitude earthquake" . . "earthquake of October 20, 1687" . . "earthquake of 1687" . "1687 Peru earthquake" .