From the reports of eyewitnesses it transpires that the seismic waves were accompanied by a violent atmospheric perturbation of cyclonic character.
The observatory of Dunsink registered in all eleven shocks, all of the fifth grade of Mercalli’s scale, and there is no record extant of a similar seismic disturbance in our island since the earthquake of 1534, the year of the rebellion of Silken Thomas.
…from the age of puberty to the menopause: inevitable accidents at sea, in mines and factories: certain very painful maladies and their resultant surgical operations, innate lunacy and congenital criminality, decimating epidemics: catastrophic cataclysms which make terror the basis of human mentality: seismic upheavals the epicentres of which are located in densely populated regions: the fact of vital growth, through convulsions of metamorphosis, from infancy through maturity to decay.
There are no more uses of "seismic" in the book.
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They are reviewing old seismic surveys with new software.
Nothing in that house escaped Mrs. Traynor’s notice, and I should have known that the smashing of the frames would qualify as a seismic event.