In 1883, an earthquake struck the northern part of Ischia. Despite the moderate magnitude of 4.2–5.5, many buildings in the across the island were totally destroyed.[3] The city was heavily damaged—many homes and businesses were demolished.[4] At least 2,313 people were killed—1,784 people died in the city alone.[5]
On 21 August 2017 was hit by a 4.3 magnitude earthquake, killing two people wounding 42 more, and causing damage to some houses.[6] On 26 November 2022 strong rainfall led to a landslide killing of 12 lives and left over 200 people homeless. The severe landslide caused the destruction or damage of numerous buildings in Casamicciola.[7][8][9]
The Swiss-born physician Jacques Etienne Chevalley de Rivaz who had a famous sanatorium in Casamicciola and lived there from 1830 until his death in 1863. He was made an honorary citizen of Casamicciola in 1837 for his work in halting a cholera outbreak in nearby Forio.[10]
^National Institute of Geophysics and Volcanology (1998). Il terremoto del 28 luglio 1883 a Casamicciola nell'isola d'Ischia la cronaca, il contesto fisico, storico e sociale, i soccorsi, la ricostruzione e le fonti documentarie del primo grande terremoto dopo l'unità d'Italia (in Italian). Istituto Poligrafico dello Stato. ISBN8824037321.
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