seismic

English Thesaurus

1. subject to or caused by an earthquake or earth vibration (adj.all)

similar	:	unstable,
definition	:	lacking stability or fixity or firmness (adj.all)

derivation	:	earthquake, quake, seism, temblor,
definition	:	shaking and vibration at the surface of the earth resulting from underground movement along a fault plane of from volcanic activity (noun.event)

derivation	:	earthquake, quake, seism, temblor,
definition	:	shaking and vibration at the surface of the earth resulting from underground movement along a fault plane of from volcanic activity (noun.event)