Ribeirinha; nestled in the river valley of the Pedro Miguel Graben and existing along the fracture zone of the Ribeirinha Volcanic complex alon the north-northeast coast, Riberinha has experienced many seismic events historically.
Praia do Norte; a zone of recent historical volcanism, built on layers of ash and pyroclastic deposits, the parish became "extinct" between 1672 and 1845, following the eruption of Cabeço do Fogo, which depopulated the parish.