Columbia subject headings:
Harvard subject headings:
Earthquakes--Italy--Campania.
Earthquakes--Social aspects--Campania--Italy.
Naples (Kingdom)--History--Spanish rule, 1442-1707.
Naples (Kingdom)--Population--History--Sources.
Princeton subject headings:
Earthquakes--Italy--Apennines--History--Sources.
Earthquakes--Italy--Apennines--History.
Earthquakes--Religious aspects--Christianity--History.