Page:Great Neapolitan Earthquake of 1857 Vol 2.djvu/92

Rh the Serra di St. Vito on the south. This is surrounded on all sides by the heaps and ruins of the ancient town of Satriano, of which I could get no account but that it was the "Citta (Civita) diruta." Like numbers of others, it is most probably the witness, of some extremely ancient earthquake, and the examination of its ruins with a careful and skilful eye, would afford decisive information as to the direction, and probably the depth, from which those shocks were delivered that centuries ago overthrew them. The information would not be without its fruit, as respects the question of secular change of energy and focal centre, in volcanic regions.