"magnitude 7.7 quake" . "921 earthquakes" . . "then-recent earthquake in Taiwan" . "Jiji earthquake" . . . "921 earthquake" . . . . . . "Taiwan earthquake" . "1999 Jiji Earthquake" . "1999 Jiji earthquake" . . . . . "1999 Jiji earthquake" . . "2415" . "51711" . . "1999_Jiji_earthquake" . . "11305" . . "1999-09-21" . . "53768" . "Taiwan" . . . . "earthquake" . . . "29" .