"1880 Luzon earthquake" . "July 19, 1880 quake" . "earthquakes of 1880" . "1880 earthquake" . . "55.0" . "1880 earthquakes" . "earthquake took place in 1880" . "70.0" . "1880" . "rule" . "the Luzon earthquake" . . . . "another earthquake" . . . "Luzon earthquakes of 1880" . "45.0" . "1880 Luzon earthquakes" . . . . "Luzon on July 14\u201324, 1880" . "Luzon earthquake" . "an earthquake in 1880" . "earthquake of July 18, 1880" . . "earthquake of 1880" . . . . "1880 Luzon earthquakes" .