The 1644 earthquake Historical milestone · Castell de Guadalest, el, La Marina Baixa, Alicante Image of Castell de Guadalest, el, not of the place itself. The earthquake that shook the comarca in 1644 ruined a good part of the fortress and of the houses perched on the rock. The repairs dragged on for decades and a new earthquake in 1748 again damaged what had been rebuilt. 1644 Photo: Mfiskum Marius Fiskum www.fototopia.no (CC BY 3.0) What to see and do in Castell de Guadalest, el