English ⇄ Portuguese

earthquake ['ɜ:θkweɪk] adj.
earth.sc., environ.	terramoto; terremoto; tremor de terra
econ.	sismo
environ.	sismos
earthquake The violent shaking of the ground produced by deep seismic waves, beneath the epicentre, generated by a sudden decrease or release in a volume of rock of elastic strain accumulated over a long time in regions of seismic activity (tectonic earthquake). The magnitude of an earthquake is represented by the Richter scale; the intensity by the Mercalli scale ['ɜ:θkweɪk] adj.
environ.	sismos
English thesaurus
earthquake ['ɜ:θkweɪk] abbr.
abbr., amer.	temblor (a Spanish loanword Val_Ships)

earthquake: 27 phrases in 8 subjects

Construction	4
Earth sciences	15
Environment	2
Insurance	2
Law	1
Life sciences	1
Research and development	1
Technology	1